CRYPTIC CROSSWORD

Across

1. Get in over one's head, with fatal result (5)

4. Comprehensive volume of public transport (7)

8. Second hand on analogue watch thus comes to be the latest (2,2,3,6) 10. Curious solo, note, that's not cohesive (5)

11. Prepare to fire at bird (4)

12. It's an impulse to give one strong counsel (4)

16. Getting green light back, went ahead and looked lecherous (5) 17. Town-dwellers' monopolies? (6,7) 19. Detective sergeant holding one will incline to spread out (7)

20. Object to being made murderer in part (5)

Down

1. Either way didn't stick to one side, but cheated (6-7)

2. To turn up holding the upper-class is no longer fashionable (3)

3. Plant whose defence lies in attack may annoy one intensely (6)

4. Order neither alternative up for no real Shakespearean character? (6)

5. Studded like fingers and toes, perhaps? (6)

6. Applied leeches when about under, but made a clumsy mistake (9)

7. Competitive runner who’s pursuing high position in church? (13)

9. It's not the front hospital sections that are retrogressive (9)

13. Business concern in this place will hold together (6)

14. Cameronian leader in Scottish attire is unruffled (6)

15. Loved to have decked out the North (6) 18. Wood made of early, live match-heads (3)