4002: A Process of Induction by Emkay

This puzzle was a tribute to Joseph Henry (1797 – 1878) the American scientist who discovered inductance – hence the title. The thematic elements were people who also had Henry in their name. This was a very mixed bunch including Henry Hall (the band leader?) and Thierry Henry, the footballer. The jumbled words did not seem to be a great problem as there were plenty of checked letters.

PERIMETER
Wishing to have diamonds (4)
FORD FOR + D
Virgin ground (6)
IRVING Anagram VIRGIN
Half a mild cheese made in Cyprus (4)
HALL HALL(OUMI)
Bird loses resolve (4)
WOOD WOOD-PECKER less PECKER
In Ulster following member of overseas political party (7)
MANCINI M  + (member) + ANC + I (in) NI (Northern Ireland)
Almost clean compartment of a honeycomb (7)
PURCELL PUR(E) + CELL
Well-co-ordinated hospital admits male imbibing ecstasy (9, two words)
THE EIGHTH HE (male) + E in TIGHT + H (hospital)
Article covering independent river transport system (7)
THIERRY I (Independent) in THE + RY (railway)
ACROSS
6 They eat insects from most of waste matter around diseased nog (7)
DRONGOS Anagram NOG in DROS(S)
10 Produces sheaths containing uranium (6)
CAUSES U in CASES
13 Trace incorrect move diagonally (5)
CATER Anagram TRACE
14 Convertible theatre curtain cover (6)
RAGTOP RAG + TOP
15 Right inside multiple elements of a gaseous layer (13)
CHROMOSPHERIC  R (right) in abbreviations of chemical elements C, H, O, Mo, S, P, H, Er, I, C
16 Diploma in Romania for musical composition (5)
RONDO OND in RO
18 Old age established position in family (6)
ELDEST ELD+ EST
20 Lawrence, reforming, gives up whiskey daily (7)
CLEANER Anagram LA(W)RENCE less W (whiskey)
22 Copper kitchen instrument (6)
PEELER 2 definitions
24 See preamble (11, two words) JOSEPH HENRY
25 Caught taking on board good, large empty water cooler (6)
GOGLET G + L(arg)E in GOT
29 Newly trained fly-fisher loses one flounder at first (7)
FRESHLY Anagram FLY-(FI)SHER
33 Italian trespasser hiding in caves. On the contrary! (6)
ANTRES Hidden
34 Penniless poet Romeo has transformed the height of his inspiration (5)
ESTRO Anagram (P)OET + r (Romeo) + 'S (has)
35 "Caution!" threat worried one certifying authorship (13)
AUTHENTICATOR Anagram CAUTION THREAT
38 Get further down from swan on river (6)
DEEPEN (river) Dee + PEN (swan)
40 Thinks highly of parties - for very short time (5)
RATES RAVES swapping V for T
42 Large and French gooseberry (6)
GROSET GROS + ET (large and - in French)
43 One who believes in the right to ... um ... include America (7)
TRUSTER T (the) RT + ER (um!) including US
DOWN
1 Foolish person loses the Tibetan animal (3)
GOA GOA(T)
2 Skin dead animal without implements - not exciting initially (4)
DERM D + ERMINE less INE (initials Implements Not Exciting)
3 Sit astride reddish-brown large plant (13, two words)
HORSE CHESTNUT different definitions
4 Go, for example, round Spain (3)
GEE EG E (Spain) reversed
5 Odd part of wheelbarrow - it's back to front! (4)
ORRA Hidden reversed
7 Switzerland invested in precious metal and money (5)
OCHRE CH in ORE
8 Count set in another way, leaving out badly cut gem? (5)
STONE Comp. Anagram COUNT SET less CUT
9 Show lascivious pleasure in physician attracting love of student (5)
DROOL DR + O + O (of) + L
10 Kind of wood cut originally for my horse (5)
CAPLE MAPLE swapping M(y) for C(ut)
11 Guide has the eastern direction right (5)
STEER 'S + T' + E + E + R
12 Thwart Anglo-Catholic having time for royal (5)
SPITE SPIKE swapping K (king) for T
17 A small quantity: sprinkle (no second helpings) (4)
DREG DRE(d)G(e) no repeated letters
19 Agile bird, neither old nor Eastern (4)
SPRY (O)SPR(E)Y
21 The culminating point of love between two knights (4)
NOON O(f) (again) + O(ld) in NN
23 Devious people appearing regularly in some covert places (4)
EELS (som)E (cov)E(rt p)L(ace)S
26 Chatter vapidly about posh copper ornaments (5)
GAUDS U (posh) + D (penny) in GAS
27 Anaesthetic article in US A&E (5)
ETHER THE in ER
28 Opinion which can be taken either way (5)
TENET the same when reversed
30 Reportedly warms and dries those who are first-born (5)
HEIRS Homophone AIRS
31 Display plunder abandoning good spirit (5)
STATE DEVASTATE less DEVA
32 Right of old holy man to a resting place (5)
ROOST R + O(f) O(ld) (again!) + ST (saint)
36 Roughly evict one, not awfully nice - you can do it with your feet! (4)
VOTE Comp. Anagram EVICT ONE less NICE
37 Neck twisted back in excruciating arching (4)
CRAG Hidden reversed
39 Church abandoning single mass rule book (3)
PIE PIECE less CE
41 Old mate returns without a trace of fascination for female bird (3)
REE (F)EER reversed