Unclued lights (five of two words) are of a kind, singly, three pairs and a trio.

Across

11 Ban on cats, dogs, etc about to be crushing (6, two words)
13 Benign swelling of rib worried old woman (7)
15 Almost flat out on a part of boxing ring (5)
16 Titivate to run for Scotland in park (5)
18 Adjusts holidays round Spain (6)
19 Devastate teacher before period (6)
20 Characteristics of a race: them, cycling (5)
22 Vintage in drinking mug, I carp (7)
28 Carnal love defiled old sacred text (7)
30 Pretends an expression of surprise, opening text (5)
31 Place in Ireland good, invariably ancient (6)
35...