The unclued lights (one of two words) are of a kind. Elsewhere, ignore three accents.
 

Across

 
1    Unethical point of an Aesop fable (6)
11    Improve, making Oriel, accommodated by a fellow (10)
13    3 in Casablanca in the wet season (5)
14    This psychotherapist poor Leonard can’t take on (5)
15    Oration about province (7)
18    Non-A roads are where to meet (6)
19    It’s under the window, not moving, timeless (4)
22    Old-fashioned people buried here? (6)
24    Snouted Indian animal chewed bowler hats, out West (9, two words)
25    Round, soft growth (5)
26    Ice-cream’s not on froth (5)
28    300 steal luggage item (9)
30    Game for a sound hitter? (6)
33    Burden the old carry all right? (4)
36    A further transaction at start of risky new lease (6)
41    Illegally take power after America backs sport (5)
42    Mighty old sore (5)
43    Collar yeti dancing in an arousing manner (10)
44    Singer mirroring resounding soccer victory (6)
45    Greek disheartened beautiful French girl (6)
 

Down

 
2    Forgets it’s on order (5)
5    Costa Rican currency — could be a mark (5)
6    Expressing admiration for water feeder (9)
7    Government overthrown by socialist was inconsistent (6)
9    Capital husband invested in food shop (5)
10    Old invader buried gold in North Island (6)
12    Eirenic type, as leading athlete accepting last in race (10)
16    Pillion has mixed make-up (10, two words)
20    Down-at-heel old solver given hiding! (4)
21    Physically attacks poor stationer (9, two words)
23    Newspaper article from page in dictionary (4, hyphened)
30    Get me confused with Saul in the Bible (6)
31    As it’s sweltering, he’d be forced to put rubbish out (6, hyphened)
32    Slade inmate’s feather (6)
34    Prove beyond doubt that Essex opener joins England and Hampshire batsman (6)
35    Pot from ancient city found in pub (5)
37    The devil of an influential Listener compiler (5)
38    Half of the chorus for the orchestra (5)
 
A first prize of £30 for the first correct solution opened on 2 January. 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 2338, The Spectator, 22 Old Queen Street, London SW1H 9HP. Please allow six weeks for prize delivery.