1. Illicit sexual relationship
6. Go on all fours
11. Deadly snake
12. Let go
15. Infants
16. Width of a circle
17. Commercials
18. Adds on
20. Darjeeling or oolong
21. French for "Head"
23. Tatters
24. Seats oneself
25. Portent
26. Adjacent
27. Skin irritation
28. Geek
29. Music genre
30. Landslide detritus
31. Guarantee
34. Piquant
36. Modern
37. Voyage
41. Tube
42. Break in two
43. Deep sleep
44. Not false
45. Arouse
46. Gammons
47. Hebrew liquid measure
48. Deny
51. Encountered
52. Thoughtless
54. Containing salt
56. Considering
57. Schemes
58. Simple song
59. Marsh plant
2. Gangster
3. Sash
4. Fertilizer component
5. Coarse file
6. Shrink in fear
7. Absorbs written material
8. Charity
9. Tiny
10. Trellis
13. Boil
15. Maestro's wand
16. Impassively saying
19. Former
22. Lengthwise
24. Elongate
26. Agile
27. Frozen water
30. Cease
32. Air hero
33. Approaches
34. Reliquary
38. Wandering
39. Huge
40. Adhesive
42. Miserly
44. Impact sound
45. Holy person
48. Sand
49. Cobras
50. Harvard rival
53. French for "Friend"
55. Young boy