Across
7 Gas used to heat greenhouses? (6,7)
8 A love one may involve 6dn (8)
9 Tawny or snowy, perhaps (4)
10 Nation’s expanding waistline problem (7)
12 Farewell you say to ladies of Spain? (5)
14 Booker or Turner, perhaps (5)
16 Rogue builders found on the range? (7)
19 Lord is seaside attraction or so we hear (4)
20 Lighter fuel? (8)
22 Symphonies and concertos, for example (6,2,5)
Down
1 Only deserved by the brave according to Dryden (4)
2 They come in wolf packs (1-5)
3 They do not all have shining armour (7)
4 More likely to ride a hog than a Brompton (5)
5 Where dreaming spires mingle with lost causes (6)
6 Sounds like grown-up behaviour but can cause a lot of trouble (8)
11 Swimming costumes designed to conceal, not reveal (8)
13 A girl includes a Kipling poem to appease (7)
15 Swiss city populated by legendary dwarfs (6)
17 Cubist leads off with a feminine supporter (6)
18 Bean you need to stay alive? (5)
21 Fab long poem (4)