2096: New World Symphony

The unclued lights (two of two words and the remainder when paired) are of a specific kind.
 
Across

1 Kind, like 7A (11, hyphened)
7 Well-spaced to start with (3)
13 Mate with old cattle causing fuss (7)
15 Singer losing nothing in outskirts of Mellieha – here! (5)
17 Money expended swapping model railway components (6)
18 This setter considers cross (5)
20 Changing stance, performs (6)
22 Campoli’s sauce (7)
27 Cut fruit and drink (not hot) for bird (7)
29 Divers trousers for eccentrics (5)
30 Old quote for bit of gravel in garden path (6)
34 Ungenerous chap takes pound from girl (6)
36 Organised church spread (5)
37 One of 29 hogging good computer access (5, hyphened)
38 Separate independent thus, dead (7)
39 Money at bridge (6)
40 Short direction to land. Not half (3)
41 PO drafts – new or modern? Yes! (11, two words)
 
Down

1 Start sailing up-river before 10 – I should think so (10)
2 Shakespearean character at English river’s with Welsh one (8)
5 Kiss girls in Bute regularly – on reflection, it’s capital (7)
6 Impressive mica dart exploded (8)
7 Share bottle of aerated water and sweet (5)
8 Heartless Muslim religious leader’s nursemaid (4)
10 Black Isle’s mount (5)
12 Stuff for Scottish firm (6)
14 Point isle out with one large town or a great number (12)
19 The Queen’s retainers? (10)
21 Entrance may be gated – or so (9, two words)
23 Kidney-shaped prescription for indigestion tablets, we hear (8)
26 Coming from the desert, American has got up and fled (7)
28 Hundred on elevators to rock-faces (6)
31 Standard hound, not black (5)
33 He scored the Spanish jazz composition In the Ascendant (5)
 
A first prize of £30 for the first correct solution opened on 4 February.