Cryptic crossword

ACROSS

1. Renegotiated a debt hanging over individual’s flat (8)

5. Amateur not starting new season (6)

9. Move fast left-winger of steady squad? (5)

10. Trouble as shown on the other side of one tree of heaven (9)

12. Letting loose heartless uncle has upset elected head of government (10)

13. A conflict not initiated by my military unit (4)

15. Start of the lesson is moving along in a pedestrian way (8)

16. Uninhibited people say something out of range of travellers (6)

19. Knocked down gutless cook in a heroic act (6)

21 & 26 Down. Contaminated air hardened hero of protest greatly (5,3,4)

24. Brother may be one day king (4)

25. Reduce the level of highly ranked athlete recalled about running slower than expected (2-8)

27. Kid swimming in unrestricted canal with blue-backed snakes? (9)

28. Young girl who finally tossed rope to secure stock (5)

29. Leave gentleman in England after sex ended prematurely (3,3)

30. Hospital lacking in hope severely criticises functions (8)

DOWN

1. Tried spud cooked and broken up (9)

2. Shoe part that is replaced after wrangler’s opening stunt (7)

3. Soldier in crowd held up right pass in bar (10)

4. A violent attack is disconcerting (8)

6. Spots letters penned by Isaac Newton (4)

7. Dislodge horn broken in operation (7)

8. Introduction of sorts included in revision of easy test (5)

11. Section of trail, an easy route (4)

14. Jazz musician was, after all, losing a broadcast (4,6)

17. Sort of keel not defined in vessel’s basic structures (9)

18. Neglects pompous fools with small dog around (6,2)

20. Approach fraud with discretion (7)

22. Mounted gallery display isn’t prepared for shipment (7)

23. Parry fine point of a sword maybe (4)

24. Resources one invested in public facility (5)

26. See 21 Across