Coffee Break Cryptic

5 July

Across

1 The sin apt to corrupt one who is naturally religious? (9)
8 Some Glaswegian gusto in part of Scotland (5)
9 Speak badly of a duke breaking ceasefire (7)
10 Cook some spinach efficiently (4)
11 Emergency treatment to make tree steady (5,3)
13 A trial arranged for a star (6)
14 Resident in Latvia grabs potent drug (6)
17 It's lovely having our egg so addled (8)
19 Turn informer among convicts in gaol (4)
21 Omitted giving flute to composer (4,3)
22 Shout in praise of festive food and drink (5)
23 Trades I've arranged to publicise (9)

Down

2 Add to supply of gnu meat (7)
3 Time to question Labour (4)
4 Involve English translation of Latin (6)
5 Enterprise, perhaps, making celebs groovy (8)
6 Cat turning up with old lady (4)
7 Boss with old motor for heavy metal fan (10)
8 Terribly rash glance reveals heavenly spirits (10)
12 In difficulties, I owed for fuel (8)
15 Old coins a genius circulated (7)
16 Too much activity upset sleuth (6)
18 Wading bird under the weather, so we hear (4)
20 Small docked tail (4)