Across 1. Church seating 5. Bambi and kin 9. "Jump in ___!" 14. Tiny image, perhaps 15. Jar 16. Parts, so to speak 17. Honorable teacher, literally 19. Tuneful Xavier 20. Drive of fame 21. Unsatisfying outcome 22. Zero, unsimplified 23. Age well 25. Avian teacher, literally 26. Conjunction logically equivalent to "and" 29. Blue 30. End of an ultimatum, possibly 31. Van Gogh masterpiece 33. Either of two teachers with a wry expression, literally 37. Prose ___ 38. Ankles 40. Heart ailment no doctor can treat 41. Reversed teacher, literally 43. Straight and ___ 45. Prof. dev. credits 46. Gumshoe 47. Downs' partner 48. Fast teacher, literally 51. Starchy staple 53. Ancient South American 54. Assn. 55. The Little Sanctuary has a fine one 59. Midwestern hub 60. Teacher with cedar shakes, literally 62. Native American dwellings 63. Zenith 64. Famous male Joan 65. Exhausted 66. Hyperbolic tangent pronunciation 67. Comp. of "Auld Lang Syne"

Down 1. ___ 39 2. Recall, in a way 3. "You said it, dude!" 4. Disrespectful expression 5. Homeric interjection? 6. Happy beyond belief 7. Wee 8. Merit respect, slangily 9. Bright light 10. Leisure Suit Larry's milieu 11. Algorithmic language 12. G-rated cartoonist 13. ___ Park (town) 18. Received signal minus transmitted signal, in digital terms 24. Eponymous sterilizer 25. Winter stoats 26. Oktoberfest order 27. Pakistani language 28. It ebbs every day 30. It's at 17th St. and Const. Ave., NW 32. Artificial sweetener 33. Old-sch. monitor 34. Beige-like shade 35. Auth. of the first calculus textbook 36. Libertarian Rockwell and others 39. MGM slogan word 42. Most acute 44. Bill Murray, for one 46. Washington city 48. Makes mayhem 49. Square 50. Goat starter? 51. Doggie 52. Sensory input with positive connotation 54. Fly's nemesis 56. Enter 57. Big do 58. It's a gas 61. Media room