Cryptic Crossword

ACROSS

1,5,13 Rivers running through the meadows bring out material for botanical excursion (7,2,3,5)

11 It's out of character to be complaining about appearance of timber (7,3,5)

12 They say you follow fib instead (4)

13 See 1

14 Score zero with trademark (4)

17 Wrap up like noisy section of fan, perhaps (6)

18 Eleven pick up the tab, carrying a large number in hired vehicle (7)

20 Una makes meal fit for students(7)

22 Crash led car to fresh start (6)

24 Rams original siege-gun after put back (4)

25 Works on church to produce something to eat (5)

26 Lips moved to speak thuth (4)

29 Ask Mum to sell NIC in a roundabout way, with unbeatable cleverness (10,5)

30 Writer appears, see, with bath (5)

31 Upset any? None - but still get pacifier (7)

DOWN

2 Be taken out before the end of 'Holiday on Ice'? (5,2,8)

3 Finish up in gale (4)

4 Stopped earning, but little change found when tested again (7)

6 Bevan, they say, was almost there (4)

7 Advance to pass, sliding without introduction to RTA (4-2,9)

8 Kind of dog that's a bit of a fool? (5)

9 Half-hearted hellcat demolishing cabin (6)

10 Holes up with mob sent to destroy (7)

15 Passed 3? Certainly not, past 3 (5)

16 Living abroad, 'pax et bonum' is no good, unfortunately (5)

19 Charlie employs static operation in campaign (7)

21 Former prime minister to back out of Number Ten (6)

22 Big brown letters reversed on sailor's equipment (7)

23 Big one's a city, small one could be delicious (5)

27 First university exam beginners take learner to supply with energy (4)

28 Took drugs, perhaps, when utility ended up at first ditch (4)