Each of twenty-one clues comprises a definition part and a hidden consecutive jumble of the answer including one extra letter. The extras spell a definition (two words, one hyphened) of two titles clued without definition and six (three of which consist of two words each) reading clockwise round the perimeter. Letters in corner squares and those adjacent to them could make EIGHT, SO FUNNY.

Across

11    Quiet journey, not tense (5)
12    Convict loses work (4)
13    Excellent, acceptable element (5)
14    Medical student reversed sorcery (7)
15    Movement during session with Aussie, turning, dismissing one (10)
17    Spent time handling levy (5)
20    Lively revolutionary declines to hold ceremony (8)
21    Biscuit, pronto, I pocketed (6)
23    Top money received by expert (4)
26    Devoted son exhausted (5)
27    Worshipping figure in outrage (5)
28    Stop wanting constant comfort (4)
30    Gateway into a trap (6)
31    Take in best song and hymns (8)
36    Number in street Scots assess (5)
38    Troublesome heap, mainly fibre (10, two words)
39    Explanatory comment altered? Nonsense (7)
40    Quite fabulous suit (5)
41    Describe watch, round (4)
42    Length in ridge (5, hyphened)

Down

2    Relate incident, vivid (7)
3    Singers in a choir loudly performed at the same time (10)
4    Raised voice about old horse’s hair (6)
5    Tremendous annual income (5)
6    Towers, weak, raised criticism (8)
7    Team testing articles (5)
8    Composer unknown in catalogue (5)
10    Monkey makes impact (4)
16    Wizard employed old money (5)
18    Fuss coming up about English theatres (4)
19    Shabby mimic, natural in turn (10, two hyphens)
22    Player of amazing charm (5)
24    Man with sloth eating dry bread (8)
25    Opposed energy limit (4)
29    Peevish over tiff? Ludicrous (7)
32    Full room’s bronzed metallic ware (6)
33    Admiring short-tailed lemur (5)
34    See sad new entertainer (5)
35    Sum up your case, please (5)
37    Nothing about a catch (4)

A first prize of £30 for the first correct solution opened on 11 September. There are two runners-up prizes of £20. (UK solvers can choose to receive the latest edition of the Chambers dictionary instead of cash — ring the word ‘dictionary’.) Entries to: Crossword 2324, The Spectator, 22 Old Queen Street, London SW1H 9HP. Please allow six weeks for prize delivery.