QUICK CLUES:

Across

1. Knowledge (11)

9. Withdrawal (7)

10. Allude (5)

11. Flanks (5)

12. In name only (7)

13. Selected (6)

15. Calculate (6)

18. Treachery (7)

20. Consumed (5)

22. Speechify (5)

23. Speedy (7)

24. Informal (4,3,4)

Down

2. Well known (5)

3. Superintend (7)

4. Revolt (6)

5. To drum (5)

6. Umbrage (7)

7. Suing (11)

8. Simplicity (11)

14. Outside (4-3)

16. Spire (7)

17. Invisible (6)

19. Riddle (5)

21. Lock of hair (5)