Coffee Break Cryptic

19 September

Across

1 Agree at the same time to withhold rent (6)
5 Noon? Correct! (5)
9 Economise? It's no good! (7)
10 Was blue bike seen here? (5)
11 Where sink contains sticky stuff (5)
12 Sovereign getting on within a month (7)
14 He's after fuel cuts (6)
16 Robust redhead enters room (6)
19 Is one surrounded by fish in this country? (7)
21 Plant that's last in herbaceous border (5)
23 A frog prepared to succeed (2,3)
24 Appropriate part of harness (7)
25 Contract providing prize money (5)
26 Month before border chaos (6)

Down

2 Portents some women scorn (5)
3 Eels can swim to get clear of dirt (7)
4 Go on turning employer against me (6)
5 Capital backing in Vietnam, maybe (5)
6 Ruler has upset agent in capital (7)
7 Druid oddly ineffective (3)
8 Dismissed correctly, without qualification (8)
13 Noel Coward wrote this complaint (3,5)
15 Wretched serf not summoned (4,3)
17 In France you cast your eye over unknown part of Italy (7)
18 I can't answer, I'm here and there (6)
20 Small Indian rocks on mountain (5)
22 Writer fed up with Old English (5)
23 Origins of garage and parking space (3)