Coffee Break Cryptic

23 December

Across

1 Extol father's attempt to make flaky piecrust (4,6)
7 Maniacs, say, going in opposite directions (7)
8 Engrossed in military exercises? (4)
10 Gem obtained for a pound after work (4)
11 Two instruments for sailors' dance (8)
13 Glass container in Cockney's car (3,3)
15 Improved as a gambler (6)
17 Think about red coins in change (8)
18 It's a revolutionary wine (4)
21 A Persian fairy some found superior (4)
22 Making a mistake about a piece of jewellery (7)
23 Principal thoroughfare terminates oddly (4,6)

Down

1 The Greek bread is mine, thanks (5)
2 Release without payment (4)
3 The minister could be a sport (6)
4 Jump over queen's spaniel (8)
5 Put on a new coat (7)
6 Workers' organisation with means of raising flag (5,4)
9 Angry lies about some racehorses (9)
12 Christmas visitors can include one conjuror (8)
14 Nelson led a man astray (7)
16 Policemen try to provide building material (6)
19 Good person bad at sin (5)
20 Ireland's round lake (4)