1. Acid-base indicator (6)
4. In some cases, from a blizzard (8)
10. Gaiety (9)
11. Fool (5)
12. Impudent (5)
13. Cranky (9)
14. Not adhering to ethical principles (7)
16. Coil (4)
19. Alliance (4)
21. Interlace (7)
24. Hot-tempered (9)
25. Tropical lizard (5)
26. A kind of heavy jacket (5)
27. An institution for parentless children (9)
28. Make longer (8)
29. Determine the arrangement of data (6)
Down
1. Glove material (8)
2. Dreary (8)
3. Bring together for a common purpose (5)
5. Not artificial (7)
6. Vest (9)
7. With hands on hips (6)
8. Rubbish (6)
9. Consecutive (6)
15. Unwilling (9)
17. Renounce (8)
18. Evocative (8)
20. The last car on the train (7)
21. Nontaxable (6)
22. Dissipate (6)
23. A wardress in a prison (6)
25. The excrement of sea birds (5)