Across
1. Aquatic plant
5. Mushers' vehicles
10. Campus locale
14. ___ grapes
15. Hardly comforting
16. Nullify
17. One who crosses the line?
18. Hindu queen
19. Whizzes
20. Band that sang "Demons"
23. Took a powder
24. Give in to gravity
25. Microsoft cofounder
28. Sun, e.g.
31. One of the top selling songs of 2014
35. Justification
37. Tree with yellow ribbons, in song
39. Agile deer
40. Tom Hanks starred in this gripping drama
44. It has strings attached
45. "Little Miss Dynamite"
46. Notable example
47. Gracious woman
50. Abnormal
52. Track star Jesse, of four gold medals in 1936
53. Mermaid's home
55. At __! (military command)
57. Big hit as an Oscar host
64. Swain
65. Skilled in
66. Bob Dylan: "Belle ___"
68. "Metamorphoses" author
69. Hereditary blueprints
70. Indian bread
71. Ringo Starr's "___ Song"
72. Gate
73. Periodontist's concernDown
1. Symbol of stubbornness
2. Points
3. US island of the Philippines
4. Medieval crossbow
5. Scribe's stroke
6. Crude hunting cabin
7. Graceful seabird
8. Went out, as a fire
9. Visionaries
10. Ancestral zebra
11. ___operative
12. Part of Yemen
13. Cheap lodging house
21. "La Superba" in Italy
22. Expression of surprise
25. Roll-shaped cloud
26. Like some roofs
27. Place for a pin
29. Lassoed
30. Humbug's partner
32. Award
33. Stop by
34. OK's
36. Cipher
38. Tease
41. Prefix with orthodox
42. Free from restraint
43. Dimming
48. False; sham
49. Brood watcher
51. Not as superficial
54. Saying
56. Anxious
57. Black to Keats
58. Prefix meaning "on the left"
59. Put into a horizontal position
60. Genesis garden
61. Mannerly sort
62. Son of Isaac
63. Criticize severely
67. Naval rank