Cryptic crossword

ACROSS

1. Compact kernel of Windows shut down? (6)

5. Dispute set back OK lad wrongly assigned tasks (8)

9. Cheat, not nice, botched marriage (10)

10. Bear pelt (4)

11. Eagerly took in funny elements of odd revue (8)

12 & 2 Down. One mistake in sale noted by one African country (6,5)

13. Blew up one at end of street parked in parking area (4,2)

15. Transmission is settling down again (8)

17. One who discredits doctor, consuming, for example, a red in a drunken state (8)

20. Improved the odds one may be interested in (6)

22. Launder money from SA used in investment (6)

24. Tradesmen treated wood in post in an odd way (8)

26. Harebrained escapade nearly finished off hood (4)

27. Imitation diamond ruined shrine with character (10)

28. Illegally takes away informers (8)

29. Gathering wildebeests rolled over for celestial deity (3-3)

DOWN

2. See 12 Across

3. Organised tunes to broadcast (4,3)

4. Company strike-breaker, involved in exploit, is given an award (9)

5. Retaining wall across a river completed by the German stranger (7)

6. Ordinary soldiers looked after unoccupied kids? (5)

7. Is not taken with new hairstyle covered in soap (7)

8. Deviation can be rare in disorder (9)

14. One in public managed to exercise too much (9)

16. Centre that researches our non-American users and workers? (9)

18. Substance used in chemical tests on a fellow (7)

19. Salesman states dishonest information in answers (7)

21. Be imprisoned by giant person from an area in China (7)

23. Planet is heading off famine (5)

25. Reach round behind weed (3,2)