Exchange IV by Regson



After the initial grid fill, solvers must exchange the contents of two cells. To help them decide which two cells these are, a hint is given by the single extra letters indicated by the wordplay in 13 clues.
Across
1  Bird compartment – before rook escapes (5)
5  Sleep for Evangelical with established area (6)
10 Reluctant Caledonian Theologian welcoming a small number (5)
11 Delight children with a molasses-based drink (5)
12 Force applied to Washington weasel (5)
14 Small fold in Tolkien’s rag doll (6)
15 Huge bird perched rebelliously in heavenly areas (5)
16 Dullards yell “No heroin” on Sunday (4)
19 People who pry nursing first of two noses (6)
20 Of recent times in French city, Australia, Ohio, Italy, and Cuba (9)
23 Until god has lost all Northern scrolls (6)
26 Sailboat in favour of Polynesia’s far side (4)
27 Until Victorian husband is found in deceit (5)
28 The Donald’s cards (6)
32 Flower owned by that man before (5)
33 Empty area in pub with extract of applejack (5)
34 Too much brownish trifle (5)
35 Dislike new English editor’s brief lexicon (6)
36 Glaswegian roots for a woman born to Police Sergeant (5)
 Down
1  Physiologist’s meringue dish (6)
2  Shaw’s heroine leaving Zambia for author (4)
3  Spiteful high-class wealthy American (4)
4  Keen ant flying about mountain (6)
5  Brings together the parts of quiet notes (5)
6  Kill engineers (3)
7  Tailor carrying uniform and one necklace (7)
8  Entertain earl in Italian restaurant (5)
9  Mothers in a society assemble (5)
13 Exclusive company in special work (5)
17 Maybe kittiwakes do aerial exercises (7)
18 Carnivorous mammals’ footprints (5)
21 Two thousand unknown revolutionary Indian people’s language (6)
22 Devices for amplifying notes arising in songs (6)
23 Author’s title wins awards in Norway primarily (5)
24 Moira’s mourning – old Henry’s on drug (5)
25 Wife leaves museum in Cornwall, say . . . (5)
29 . . . museum’s English boundary (4)
30 Artificial bait for lamprey essentially (4)
31 Score by showing nectar of flowers (3)

To enter this competition, send your entry as an image or in list format  to ccpuzzles@talktalk.net before the 8th April 2016.The first correct entry drawn from the hat will receive a book from the Chambers range which has been donated by Chambers.