1. Site of a famous tower
6. Never-ending
10. Assistance
11. British Thermal Unit
12. Sicknesses
13. A polite way of interrupting
14. Not more
17. Leaf of the talipot palm
20. A very small amount
21. A support for a bridge
22. Puzzling
24. Demurely
1. Of missiles and projectiles
2. Vipers
3. Exist
4. A Tuscan island
5. Deadliness
6. 22nd letter in the Greek alphabet
7. Snake-like fish
8. Third person singular female
9. Total
14. An untruth
15. Long period of time
16. A powdery food starch
17. Gemstone
18. Garland
19. Circle fragment
23. Not your