2120: Urban – or what?

The unclued lights (one of two words) are of a specific kind. Ignore all accents.

Across

Most popular

Ed West

What really scares people about Adolescence

1 H-E-X? (5)
4 Series of numbers causing confab about 1 and 101 (9)
10 In an alienating way, first disproving 4 = 4. See? (10)
11 Shaver heard to be one on the way up? (6)
14 The wall in France is found in Madagascar (5)
15 Excessively fussy, reportedly, of photo (5)
16 Slave’s firework (6)
22 Art instructor, drink importer (8, hyphened)
23 John by landing-stage is crazier (7)
29 Tall herb — one seen in battered Mercedes, rear missing (8, hyphened)
32 Gold in principal part of soft ground (6)
34 Hurled, recoiled and quickly moved feet away (5)
35 Certain urtext reflecting some Christian (5)
36 Festival at noon at the Orient (7)
38 Chlorophyta range eagle chewed (10, two words)
39 Deeply felt, counting 20, 30, 40 … — regularly really (9)
40 Burns’ dwarf at mill (5)

Down

1 Telephonic devices start to ring during motorbike trials (10)
5 Muscle-strengthening exercises for one with several wrinkles, we’re told (10)
6 Carefully watched deliveries and was upset (7)
7 Cold touches of awfully late gales in December (5)
8 Burglars having excellent small pieces (9)
9 Racing car is behind you — look there! (4)
13 Dishonest Tory gets fleeced (7)
15 Film star endlessly walking round (6)
17 Reclaim the potty completely sealed (10)
19 Don’t move and work under the platforms (10, two words)
21 Life with MD edited and in the can (6)
26 Kinds of nuts are sorted (7)
28 Cowardly, but not ladylike (7)
30 Saw cutting sea-cucumber (6)
31 Length of time? (5)
33 Catalan composer’s upper room (5) …
34 … in house in Kent by motorway (4)