4. Big name in faucets

9. Soothe, as fears

14. One-time ring master?

15. High-tech messaging

16. Let

17. 1/1000 of an inch

18. It's nothing (2 wds.)

20. Agreement

22. Afore, afore

23. Scam artist

27. Foot pedal

33. Brain cell

35. Hotel feature, often

36. Island memento

38. Prep, in a way

40. Hem & haw, e.g.

41. Bridge toll unit

43. Razor sharpener

45. Yemeni seaport

46. Mideast moolah

48. Locales

50. Trip starter?

51. Elevator pioneer Otis

53. In a carefree manner

55. Church officials

57. Diplomacy

60. Coffee alternative

62. Marine shade, e.g.

63. It's nothing (3 wds.)

71. Bull markets

72. Slowly disappear

73. Hawkeye

74. A word with you?

75. 72A when all gone, i.e.

76. About

77. Bit

1. Improvises

2. Hip-related

3. It's nothing (3 wds.)

4. Center of a ball?

5. Outback denizen

6. Test site

7. Little 'un (var.)

8. Argus-eyed

9. Per

10. Bucharest coin

11. Backwards gal?

12. Bat wood

13. Although

19. Hospital supplies

21. Homonym for 60A

24. Kind of shot

25. Blows it

26. Forages, in a way

28. Biblical verb ending

29. Type of code

30. It's nothing (hyph.)

31. They shoot down shoots

32. Correct, as text

34. Water wheel

36. Puts on cargo

37. Deposed leader, perhaps

39. Recurring theme

42. III on the sundial

44. Scope starter

47. Homonym for fish spawn

49. Transgress

52. One opposed

54. Where to find ewes?

56. Brown shade

58. Old Toyota

59. Alleviated

61. Soon, to a bard

63. Center of Arizona?

64. Detergent choice, perhaps

65. Hang too long on the vine, e.g.

66. Keats work

67. Buddhist sect

68. Stun

69. One of Alcott's "Little Men"

70. Industrious critter