9. Raise (7)
10. Perform surgery on (7)
11. Atomic (7)
12. On trails (7)
13. An artificial language (9)
15. Sag (5)
16. Dirigible (7)
19. A financial supporter (7)
20. Cuban dance (5)
21. Listen in (9)
25. Corrective lenses (7)
26. Pernicious (7)
28. Bearing a title signifying nobility (7)
29. Of little importance (7)
Down
1. Twerp (6)
2. A cup for a hot beverage (6)
3. Pedestal (4)
4. Nerve (6)
5. Full and loud and deep (8)
6. Treacherous (10)
7. Courageous (8)
8. Moonstone (8)
14. Practices (10)
16. Revoke formally (8)
17. Bulwarks (8)
18. Force (8)
22. Conceit (6)
23. Novice (6)
24. A grinding tool (6)
27. Seventeen in Roman numerals (4)