7. Gene-editing acronym

13. Sulking more

15. Red Serge uniform wearer

16. Wasn't a pushover

18. Alley __

19. Put under

20. Group with hdqrs. in Ramallah

21. Pertaining to

23. Interjections from the obtuse

24. Topic for Catullus

25. Barry B. Longyear novella that won Hugo and Nebula awards

28. One can be tracked

29. Science utilizing the Very Large Array

31. Speak effusively

32. "Hamilton" actor Leslie __ Jr.

33. 1976 horror film with Karen Black and Betty Davis

39. "The Maids" playwright

40. Portray

41. Some MoMA works

42. Glen cousin

43. Royal Russian of yore

44. LP filler?

45. Practice at a track

48. "The Aviator" company

49. They're not on Wikipedia but ought to be

52. Primary component in nail polish remover

53. Suds

54. Administer Valium

55. Credit __

1. Deeper into la-la land

2. Hallelujah kin

3. Color in a junkyard

4. Fossil suffix

5. Evergreens

6. French noodle?

7. Dairy Queen supply

8. Felt remorse for

9. Special favor enablers

10. Barbra, to Josh Brolin

11. Expose to public scorn

12. Perot's party

14. Sunset color

15. Nacre

17. Frighten

22. Some political fugitives

24. Democritus or Leucippus, philosophically

26. Baseball Hall-of-Famer Robin

27. Rigged support

28. Tedious show

30. River to the Baltic

33. MLK's youngest child

34. Candid, as a photo

35. Hip-hop's Roc-a-__ Records

36. Some chocolate

37. Rodents, notably

38. German avenue

39. Followers of betas

42. "A Season in Purgatory" novelist Dominick

45. Cause for a lockdown

46. Fund-raising gps.

47. In __ (unmoved)

50. __-puf (old laundry product)

51. City with both A.L. and N.L. teams, informally