6. Square things, in a way

11. Attorney org.

14. Make a point, e.g.

15. Small silver salmon (var.)

16. Blubber

17. Second hand, e.g.

19. United

20. Try for a better version, say

21. Aquatic plant

22. Celestial body

23. Russia, once

26. Froot Loops mascot

30. Rodeo bull

31. Discomfit

32. Place for sweaters?

33. Nearest star

36. Page

37. Antiquated

38. Notice

39. Quit

40. Holiday music?

41. McDonald's fixture

42. Flat hats

44. It's big in Spain, i.e.

45. Pineapple, of sorts

47. Comment from the lea

48. Blockheads

49. Defense fence

54. Hawaiian food fish

55. Second hand, e.g.

58. Ala cousin

59. Nut-bearing tree

60. Heavy metric weight

61. Bishopric

62. Egg protector

63. Irish poet

1. Ruler of 23A

2. Advil target

3. Fly high

4. Coastal raptor

5. Minuteman foe

6. Biting

7. Mary in the White House

8. "Look here!"

9. ASAP, e.g.

10. Dusk, to Donne

11. Second hand, so to speak

12. African antelope

13. Crosswise, on deck

18. A.M., to a bard

21. Hand holder?

23. Bridge support

24. Fit to be tried?

25. "Bingo!"

26. IV part

27. Airy

28. Second hand, e.g.

29. Large brown mushroom

30. Barracks sites

32. One way to cook

34. Kind of column

35. Harp's cousin

37. Argued

38. Detergent brand

40. Supporter, of a sort

41. Weakness

43. Minnesota twins?

44. Apple variety

45. Sticky things

46. Hindu royal

47. Clean

49. Agreement

50. Gin flavoring

51. Actress Paquin

52. Fender flaw

53. Meadow moms

55. Peacock network

56. Not 'neath

57. Tetley product