Across

1. Extol

5. Tater

9. Often found at a hair salon

16. “Green Gables” girl

17. Arizona native

18. Like leftovers?

19. Fizzy drink

20. All excited

21. D and C, in DC

22. Charts of today, with 25 across

25. See 22 across

26. Not just “a”

27. Prof. engineering organization

29. “___ pig's eye!”

30. Went out, as a fire

31. Attack

33. Armageddon

35. Billiard table material

37. Chart of today

38. Live wire, so to speak

40. On the safe side, at sea

41. Spoil, with “on”

42. Work streamline using chart of today

44. Algorithms in charts of today

48. Chart of today

49. Camping gear

50. Clash

51. Jerks

54. PHI protection aided by charts of today

55. Be nosy

56. Gives up

57. Vigors partner

58. “Dear” one

60. Anger

61. ___ de la Cite

62. Communication tools in charts of today

66. Treatment guide in charts of today, with 71 across

71. See 66 across

72. At one time, at one time

73. “___ Perpetua” (Idaho's motto)

74. Dorothy in The Muppets' Wizard of Oz

75. Locale

76. Jared of “Panic Room”

77. “I am not as crazy ____”

78. Lady Macbeth's fixation

79. Mertz of “I Love Lucy” fame

Down

1. ___-guided

2. Lizard

3. Waffling

4. Church official

5. Archeological find

6. Sticks of a type

7. “Once ___ a time…”

8. Data update in charts of today

9. Tired

10. A chip, maybe

11. Juno actor Michael

12. Former New Yorker movie critic Pauline

13. Cowboy hat

14. Jackrabbit is not an ideal one

15. Years, to Yves

23. “La la” preceder

24. “We Are Not Free” award-winning author

28. Chart of today: abbr.

30. Losing proposition?

31. Actor Green of “Buffy the Vampire Slayer”

32. Trousers in Scotland

33. Tokyo, formerly

34. “___ any drop to drink”: Coleridge

35. Foundation

36. Guinness

37. Terra ___

39. Costar with Nicole and Laura in “Big Little Lies”

41. Popular X-Files partner of Fox

43. Tach readings

44. Enlivens, with “up”

45. Worker on Antiques Road Show

46. Shipshape

47. Teen's room descriptor, at times

49. Enduring records, as when using charts of today

51. HS subj.

52. Tap, as on one's abdomen

53. Long Island university

54. Center of thorax

57. Sufferer, often

58. Mr., abroad

59. Solitary

62. Pasta or pizza sauce

63. Santa's reindeer, e.g.

64. Singer Lenya

65. Hair holder

67. Popular bar drinks

68. ___ of the above

69. “Go away!” to Gustavo

70. Big bore

71. ___ protein (marker of chronic inflammation)