Across
1
Basin for washing the nether regions (5)
4
Smart alec - mafioso (4,3)
8
Serious fall from grace (6,3)
11
Seat of government in Holland (3,5)
13
Bribe paid to ensure silence (4,5)
17
Bitter alkaloid in drinks which has a stimulant effect (8)
21
Means to propel a boat (3)
24
Brutish creature invented by Jonathan Swift (5)
Down
2
Muslim ascetic known for frenzied dancing (7)
3
Kind of jazz harking back to its New Orleans origins (4)
4
Premier League club (4,3,6)
5
Natural light and heat (8)
14
Behaving like a hooligan (7)
15
Opposite of 'down'? (6)
16
Insectivorous bird - fool down under (6)
18
Italian, Nobel-winning physicist, d. 1954 (5)