Cryptic crossword - The Scotsman 18/06/12

ACROSS

1 Straining at the leash to initiate stimulus (6)

4 Was bear-cat upset by European badger? (8)

9 It’s wrong to give carte blanche to a street market (6)

10 Giving the go ahead to take back poison to catch fish (8)

12 Although rather ineffective without force, can still be useful (5)

13 Withdrawal of dissolution may cause devastation (9)

14 Member finds constituent in his natural surroundings (7)

15 Girl had a very small type of gemstone (4)

19 May spot a defect in a bad crowd (4)

21 Independent not engaged when out of gear (7)

24 In full view, had to cross swords in revolt (9)

26 Son left African capital with first-class jacket (5)

27 Did a writer have to shadow a military HQ? (8)

28 It’s right to tear up a series of mistakes on paper (6)

29 Short time ago, but only after a long year (8)

30 Be attached to dog-lead at present (6)

DOWN

1 Having put on a show, at some stage, return with degree (8)

2 Got hold of boat to dine out (8)

3 Part with the staff of life, little by little (9)

5 Outline how to open cookhouse on safari (7)

6 Start to read a couple of books to the teacher (5)

7 A politician, in short, is making excuses (6)

8 Device used to put new spirit into the heart of Greece (6)

11 Have an inclination to pay lip service (4)

16 Best ruled out, having thrown his weight about (9)

17 Manage to take coal-boat into empty tube (8)

18 Invest in buildings, at short notice, by the end (8)

20 Have to track back to spot disturbance (7)

21 Reports flowing in from all directions (4)

22 Turn on the charm, having left out the truth (6)

23 Trifling amount paid to tune a piano badly (6)

25 Open up the family, of course (5)