A word suggested by the title can either precede or follow each of the unclued lights to form phrases listed in Brewer.
 

Across

10    5’s musical art on car plate (12)
11    Chosen the front bits of 40 (5)
13    Artwork showing most of red face cover turned over (7)
14    Crushes forms and PO items (6)
17    Spenser’s questioning adding a seal (8)
21    Might they roughly bisect Arctic Ocean for starters? (8)
23    Small monkeys which don’t drink (7, hyphened)
25    Old Cypriot coin (note) — pound (3)
28    Frivolous quartet in sheepdog competition (7)
34    Prayer-meetings go astray trying out sugary enzyme (8)
35    Alternate alternately, before Easter (4)
36    Minor difficulty with greasy material on church (6)
39    Reclining topless, travelling (5)
40    Poll 24 about metal cover (12)
41    Bakes bit of bread turned on a spit? (6)
 

Down

2    Swimmers sleep over endlessly (4)
3    He carried the fasces and some metallic torch (6)
4    Love-bird with early indications of incipient sharp inflammation (6)
5    Player who pulls out all the stops (8)
6    Boy will stagger and lose courage in Aberdeen (7)
7    Tenor Alfie is in state capital (5)
8    Huge ships haven’t sail rigged (10)
9    Frenchmen discarded brown suit (5)
12    Early start — thus going without newspapers and coffee (8)
15    Thematic graduate in armour will surrender (6)
18    Foresight of 101 in attendance (10)
20   This lawyer gets the stick! (6)
22    Borders put on the market, we’re told — five borders (9)
24    Greek character touring Crete, swimming and so forth (8, two words)
27    Script socialist revised. Not so (7)
30    A chief magistrate with a bow, holding hard onto bit of news (6)
33    Small web on upright slab (5)
37    Workers removing top of Y-fronts (4)
 
A first prize of £30 for the first correct solution opened on 19 February. 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 2344, The Spectator, 22 Old Queen Street, London SW1H 9HP. Please allow six weeks for prize delivery.