1. Stopper
5. F F F F
9. Young cow
13. Alley
14. Flies alone
16. Two-toed sloth
17. Salt Lake state
18. Horde
19. Wander
20. One more than 6
22. Sexual desire
24. Afresh
26. Backward-looking
27. Relating to urine
30. Dissertation
33. Link
35. 3rd Greek letter
37. 56 in Roman numerals
38. Exaggerated nasality in speech
41. Russian fighter
42. Dawn
45. Sicken
48. Exit
51. Distended
52. Smidgens
54. Balcony section
55. Conveyed
59. Geeks
62. Sister and wife of Zeus
63. Birch relative
65. Violent disturbance
66. Where the sun rises
67. Motherless calf
68. Wash
69. Run away
70. Used to be
71. Anagram of "Lyme"
2. Tardy
3. Ineffectual
4. Tartarus
5. S
6. Poultry
7. Pizazz
8. Cold dessert
9. Books on unusual subjects
10. Soon
11. Magma
12. Gas or petrol
15. Metalworker
23. Remnant
25. Court order
27. Website addresses
28. Variety show
29. Ouch!
31. Extraneous
32. Strike
34. Indian bread
36. Elderly
39. Apprehend
40. White aquatic bird
43. Pee-pee
46. Any day now
47. Thirstily
49. Place
50. Sick-looking
53. Marsh plant
55. Cook
56. Make well
57. Backside
58. Doe
60. Bird of peace
61. Flower stalk
64. Type of whiskey