Quick crossword

ACROSS

1. Constructors (8)

7. Bugs (5)

8. Marvellous (9)

9. None (3)

10. Liability (4)

11. Made to look guilty (6)

13. Means of advancement (8,5)

15. Swarmed (6)

16. Outstanding performer (4)

18. Church seat (3)

20. Easing (9)

21. Kills (5)

22. Drew (8)

DOWN

1. Bent with age (5)

2. Dishonourable (7)

3. Song for two (4)

4. Tome of facts (9,4)

5. Majestic (5)

6. Keep apart (7)

7. Momentary view (7)

12. Entreaties (7)

13. Assume (7)

14. Flightless bird (7)

15. Make a minor adjustment (5)

17. Stiff (5)

19. Overcome (4)