Across
1
Northern temperate deciduous tree (6)
4
Berkshire racecourse (5)
7
Light brown: acidic salad leaf (6)
9
Hindu goddess of destruction (4)
10
Convert liquid into a spray (8)
12
Decisive stroke (4,2,5)
17
Unable to distinguish musical pitch (4-4)
19
Source of ivory in certain mammals (4)
20
Line on a map linking places of the same atmospheric pressure (6)
21
Chilled pack applied against injury (3-3)
22
Ointment for wounds (5)
Down
1
Matter-of-fact; lacking imagination (7)
2
Place one frequents; haunt (7)
3
Extremely nervous (3,2,4)
5
Relating to the heart (7)
11
Voluble but uninteresting person (3,2,4)
13
Action which backfires on one (3,4)
14
Decorative style at its height in the 1930s (3,4)