One clue lacks a definition part; its answer is a film title. One unclued light (three words) is the title of a song in the film, and one unclued light (two words) is the name of its singer. The first word of the song’s title defines three unclued lights, and its third word defines three unclued lights. Ignore an accent in one unclued light.
 

Across

 
9    State answer in sorrow, not right (4)
11    Appeal to follow dull guru working for footballer (10, two words)
14    Give respectful title to gods, loud in song (6)
17    Social event in place I like (5)
18    Rascal learning line (5)
20    Impressive edition ending in sombre funeral ode (7)
21    Several irregular beats (7)
23    Ballad unknown in mountains in Colorado (7)
24    Trade union with excuse lacking a set of data (5)
25    Main point about European spirit (5)
30    Praise led by first couple of cultists without offspring (7)
32    Bands, each one effective in retreat (7)
36    Scottish colt succeeded, changing gait (5)
37    Excellent to keep religious fast (5)
38    Soul at sea faced by aged god of winds (6)
41    Feel about for bonnet (4)
42    Stirring news rallied sad Caribbean group (14, two words)
 

Down

 
1    Cake? Children cluster (5)
2    Rum time with criminal society losing money (5)
3    Useless without volume in mineral alloy (6)
4    Sweat in sun, awfully dour (5)
5    Sum up resolution with singular speech (7)
6    Believer in contrasting aspects united in artist and saint (7)
8    Lacking elegance in filthy place, drunk — not good (9)
10    Explosive power in story following wizard (11, two words)
13    Grand projection about railway producing cry of surprise (7, two words)
15    End connection with dope, clue being botched (8)
19    Decide clothes when working according to time of year (8)
21    Settle on book with quite fiery item illuminating battle (9, hyphened)
22    Priest’s Roman garment ripped by barbarian (7)
26    Bad rust I note in spear (7)
28    Nymph in earth caught by old fox? (7)
29    Extremely upset about second transfer (6)
33    Accumulate international caps (5)
34    Child holding work up in court (5)
35    Creeps employed gestures partially (5)
 
A first prize of £30 for the first correct solution opened on 30 May. 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 2260, The Spectator, 22 Old Queen Street, London SW1H 9HP. Please allow six weeks for prize delivery.