1. Duds in bed? → PJS
4. Place for a castle → BEACH
9. Retailer across the street from Rockefeller Center → SAKS
13. Bread for dipping → SOP
14. Very, very → ULTRA
15. Very, very particular → ANAL
16. Cubing needs → SKINDIVES
18. Like an S-Tier video game character → ELITE
19. Computer pros → TECHS
20. In position → SITUATED
22. Beurre demi-___ (salted butter, in France) → SEL
23. Turns on → BETTERDAYS
25. ___ ejemplo → POR
26. "Hail," in Latin → AVE
27. Scottsbluff's state: Abbr. → NEB
28. Overlook for an award, say → SNUB
30. Hitchhiker's hope → RIDE
32. Niihau neighbor → KAUAI
36. Make, as money → AMBIENT
38. Ensnare → STARMAP
40. Puts through the paces → TESTS
41. On the topic of → ASTO
43. Spanx founder Blakely → SARA
44. Spanish diminutive suffix → ITO
46. "Excuse me!" → HEY
47. Video game customization, informally → MOD
48. Fops → DAMNEDLIES
52. Surfboard stabilizer → FIN
53. Vesper Lynd portrayer in "Casino Royale" → EVAGREEN
54. "Star Wars" character originally portrayed by a puppet that weighed over a ton → JABBA
56. They may be threaded → BROWS
57. He doesn't belong ... or a hint to the circled letters in 16-, 23-, 36-, 38- and 48-Across → ODDMANOUT
60. Singer with the #1 hits "Umbrella" and "Disturbia," familiarly → RIRI
61. Levi's Stadium player, informally → NINER
62. Actor who participated in the first WrestleMania event, in 1985 → MRT
63. Came down to earth → ALIT
64. "Jumping Jehoshaphat!" → EGADS
65. Supporting article? → BRA