ACROSS

1. What Peter and Paul have in common?

8. Finding?

15. Peek-a-boo

16. Developed in a way

17. Casual dinner attire

18. Puts down

19. Symptom?

21. Airy

22. Warm Springs, for one

25. Finding?

31. French Sudan, today

32. ___ squash

33. Adam's apple spot

34. Apple spray

35. One who governs pro tempore

37. Hereditary

39. Anger

40. ___-bodied

44. Archer, at times

45. Departure

46. Symptoms?

48. Big ___ Conference

49. Antifur org.

50. Finding?

58. Symptom?

61. Trouble speaking

62. On-line creep, for one

63. Annoying

64. Make-up sites

65. Excitement when whale watching

DOWN

1. Stone leader

2. Famed "___ Figurines"

3. Swarm

4. Anatomic web

5. Ogler

6. City on Lake Nero

7. Thumb tack

8. Avoidance of unpleasantness

9. Big Rock Candy Mountain singer Burl

10. Home to some Mongolian nomads

11. Tissue types: abbr.

12. Bolts or Konas

13. Visualize

14. Map abbrs.

20. ___ network

22. Deli offering

23. Typewriter roller

24. Networks re: series

25. Renovated attic

26. Climbing need

27. Head, slangily

28. Receive

29. Setting for TV's "Newhart"

30. Schuss, e.g.

31. Craze

36. ___ Mahal

38. 40 winks

41. Ones who bang on 27 down

42. Place

43. Catches in a way

47. Asian capital

50. Tablet

51. ___ fruit

52. Felt bad about

53. Atkins - country musician

54. Sitar master Shankar

55. Another phrase for 'which means'

56. Warble

57. Crones

58. Hiree work stat

59. It may finish second

60. Digit

CIRCLED SQUARES GIVE THE ANSWER AS TO "WHAT'S MISSING" THAT CAUSES THE ITALICIZED ANSWERS