2268: In state

The unclued lights (two of two words) are of a kind, verifiable in Brewer among other reference books. Elsewhere, ignore one grave accent.
 
Across

1    Complete support for defender (8)
6    Wan painting child’s vehicle (6)
11    Novice leads the experts, then ties (5)
14    Calm meeting in silence (6)
16    Slight, and slightly less than yours (4)
17    Correct object kept by English chum (8)
21    Subjugated Russian perhaps, trapped in valley in revolution (8)
25    A tip given in the olden days (3)
26    Pheasant’s nest is close by, reportedly (3)
28    Billy’s relatives are child-minders (7)
29    Computer test on gag on sport (8, hyphened)
34    Husband en route to ruin, up to this point (8)
35    Scotland’s returning singer (4)
36    Goon’s cake (6)
39    Bletchley Park expert shuns German city (5)
40    Thus, compiler waving feather (12, two words)
41    Come to care, after a time (6)
42    West’s kind about conductors (8)
 
Down

1    Fag end? (9, two words)
2    Showing sloth, the African Union’s behind international peacemakers (4)
3    A cross-rib engineers put up, held by rope (6)
4    Brutal soul with bully’s heart (6)
5    Concern about frequently lacking fine pigment (8)
6    Vigorously attack headless trout, say – that’s silly (7)
7    Little Tom or Jack (5)
8    Judge in fix, disregarding leader’s subtle improvement (10)
9    Small adolescent beginning to yawn (5)
18    Latin poet’s skill in judo? (10, two words)
19    Set meal (8, two components)
20    A little walk — exercise, that’s plain (6)
24    Pure, top grade herb used in cooking (8)
30    Bit of Christmas cheer around the kindergarten (6)
31    Part of dictum ultimately results in riot (6)
32    ‘Uncle’ attending half of barn dance (5)
37    Posh car spilling oil around motorway (4)
 
A first prize of £30 for the first correct solution opened on 25 July.