Theme: Lefty - Can you guess my title?
20A. Canadian flag symbol : MAPLE LEAF. Loose leaf notebook.
52A. Final details to take care of ... and, literally, what the last words of 20-Across and 10- and 29-Down can be : LOOSE ENDS
10D. Preface to Bush Sr.'s "no new taxes" promise : "READ MY LIPS". Loose Lips Sink Ships.
29D. "America's Got Talent" host since 2009 : NICK CANNON. An irresponsible person is a loose cannon. Phrase Finder
Argyle here. Your basic Monday; a nice pin wheel without the pin.
Across:
1. Hockey disk : PUCK
5. Blows, as one's lines : FLUBS
10. Belmont Stakes, e.g. : RACE. The Belmont Stakes is the third and final leg of the triple crown of horse racing.
14. Workplace protection org. : OSHA. (Occupational Safety and Health Administration)
15. Parts in a play : ROLES
16. British prep school : ETON
17. Arab League prince : EMIR
18. Deed holder : OWNER
19. Weaponry : ARMS
22. "Farewell, mon ami!" : "ADIEU!"
23. "Put a __ on it!" : LID
24. Prevailing weather : CLIMATE
26. After-dinner brandy : COGNAC 49D. Straight up, cocktailwise : NO ICE
30. Every 24 hours : DAILY
31. "Hold Me" Grammy winner K.T. : OSLIN
32. Rap sheet abbr. : AKA. (Also Known As)
33. Speech therapy subject : LISP
37. Actor Baldwin : ALEC
38. Advertising handout : FLIER
40. Wedding vows : I DOs
41. Honky-__ : TONK
42. Rowboat need : OAR
43. High-80s grade : B-PLUS
44. Like mountain roads : CURVY
46. Mojave or Gobi : DESERT
47. Two-deck rummy variety : CANASTA
50. Dylan or Dole : BOB
51. Hotelier Helmsley : LEONA
58. The Emerald Isle : ERIN
59. Heavenly food : MANNA
60. Injured, as a muscle : TORE
61. Wealthy, in Juárez : RICO. Spanish.
62. In the midst of : AMONG
63. Unexpected problem : SNAG
64. Sharp-edged : KEEN
65. Shopping binge : SPREE
66. Tranquil discipline : YOGA. 84 classic asanas.
Down:
1. Sonnet or haiku : POEM
2. West Point initials : USMA. (United States Military Academy) Remember we recently learned there is a U.S. Mint at West Point.
3. Poker player's token : CHIP
4. Hoopster Malone : KARL. "The Mailman" played 18 seasons (1985–2003) with the Utah Jazz.
5. Play friskily : FROLIC
6. Mooed : LOWED. Down in the lea.
7. Elbow-to-wrist bone : ULNA
8. Sexy photos in women's mags : BEEFCAKE. And brains, too.
9. Ukr. or Estonia, during the Cold War : SSR. (Soviet Socialist Republic)
11. Open-air courts : ATRIA
12. Halley's __ : COMET
13. Occur as a result : ENSUE
21. Stylish vigor : ELAN
22. Have a bug : AIL
25. Unreliable witness : LIAR
26. Winter wear : COAT
27. Capital on a fjord : OSLO
28. Secluded valley : GLEN
30. Eggs and butter market section : DAIRY. At the back of the store.
34. Sit at a four-way stop, say : IDLE
35. Sweet's opposite : SOUR. Sometimes together.
36. Furtive "Hey!" : "PSST!"
38. __ Knox : FORT
39. Psychedelic light source : LAVA LAMP. 30 minutes.
43. Emmy winner Neuwirth : BEBE. Lilith Sternin, on Cheers and Frasier.
45. Land between Can. and Mex. : USA
46. Prescription amount : DOSAGE
47. Supermarket staffer : CLERK
48. Eagle's nest : AERIE
50. Good, in France : BONNE
53. "Want the light __ off?" : ON OR
54. Crafts website : ETSY
55. Taboo : NO-NO
56. Really dull time : DRAG
57. Arcade giant : SEGA
59. Pas' mates : MAs
"Righty Tighty, Lefty Loosey"
Argyle