Theme: Late - Things after dinner.
58. When one might have a mint ... or where the first words of 18-, 24-, 37- and 48-Across can be found : AFTER DINNER
18. Hotel lobby supervisor : BELL CAPTAIN. Dinner Bell
24. Working the room, as at a banquet : TABLE HOPPING. Dinner Table
37. Time of reckoning : DATE WITH DESTINY. Dinner Date
48. Congressional majority, e.g. : PARTY IN POWER. Dinner Party
Argyle here. Barely awake and no, it wasn't a rough night.
Across:
1. Website pop-ups, e.g. : ADS
4. Brush with liquid while roasting : BASTE
9. Jeweled headwear : TIARA
14. Morse code bit : DAH. Well, no dit.
15. Electric razor brand : BRAUN. What's a razor?
16. Like some short-term committees : AD HOC
17. Make a boo-boo : ERR
20. Bathtub insert : PLUG
22. Texter's "Wish you hadn't said that!" : TMI. (too much information)
23. Practical, as a solution : VIABLE
27. Words before uproar : IN AN
28. Dipstick wiper : RAG
29. Gumshoes: Abbr. : PIs. Private Eye.
32. Madrid museum : PRADO
35. Little kid : TOT
36. Went to the bottom : SANK
41. Is the right size : FITS
42. Yea's opposite : NAY
43. Short, but probably not sweet : TERSE. Like this write-up?
44. Sneaky : SLY
45. Warm lining : FUR
46. Feline king : LION
53. Nielsen of "The Naked Gun" films : LESLIE. And "Airplane!"
56. Canon SLR camera : EOS. Are they all DSLR now?
57. Indian wrap : SARI
61. Santa visitor's seat : LAP. Ho Ho Ho!
62. Fable's lesson : MORAL
63. Rear, to an admiral : STERN
64. Mao __-tung : TSE
65. Unlike poetry : PROSY
66. Blended ice cream drinks : MALTS
67. Buddhist sect : ZEN
Down:
1. Quite competent : ADEPT
2. "Our Gang" girl : DARLA. Never knew this. Not a bad voice.
3. Decorative foundation plant : SHRUB
4. Consumer protection gp. : BBB. (Better Business Bureau)
5. "Respect" singer Franklin : ARETHA
6. Upstream swimmer : SALMON
7. Dutch bulb : TULIP
8. Britannica, e.g.: Abbr. : ENC. (encyclopedia)
9. Wrapping, as an ankle : TAPING
10. Rover's collar attachment : ID TAG
11. Melville's obsessive whaler : AHAB
12. Stir up : ROIL
13. Clearasil target : ACNE
19. Fly : AVIATE
21. Flies like a seagull : GLIDES
25. Sufficient, in poetry : ENOW
26. Cattle poker : PROD
29. Low poker hand : PAIR
30. Quaint lodges : INNS
31. Hebrides isle : SKYE
32. Many emailed image files : PDFs. There are programs to change JPG to PDF or change PDF image to JPG but I have no experience with it.
33. Train wheel guide : RAIL
34. Suit filer: Abbr. : ATTY.
35. " ... hallowed be __ name" : THY
36. Dictation takers : STENOs. (stenographer) It seems STENO is a stand alone word and not an abbreviation.
38. Accustomed (to) : INURED
39. Small fruit pie : TART
40. Four-way __ : STOP
45. Without prejudice : FAIRLY
46. Big name in little trains : LIONEL. Fantastic in full screen!
47. What an editor's caret indicates : INSERT
48. Sincere entreaties : PLEAS
49. Busybody : YENTA
50. Dance in triple meter : WALTZ
51. Wipe out : ERASE
52. Mature, as fruit : RIPEN
53. Desk light : LAMP
54. Get an __ effort : E FOR
55. Houston player, informally : STRO
59. School-of-thought suffix : ISM
60. Hosp. staffers : RNs
Argyle