Theme: Oh No, Oh Yes - The letter "O" is added or taken away, depending on how you look at it.
17A. Place for a haircut and a whiskey?: SALOON SALON
27A. Storage solution for Disney?: CARTOON CARTON
43A. Farmer's wake-up duty list?: ROOSTER ROSTER
57A. How to ask journalist Roberts if she'd like an Oreo?: "COOKIE, COKIE?"
Argyle here with what appears to be a debut for this constructor. No reveal Monday. Personally, I liked the mental image of a flock of roosters arguing about whose turn it was to crow.
Across:
1. Scalawag: SCAMP
6. Barber's razor targets, at times: NAPEs. Back of the neck.
11. Folder identifier: TAB
14. Ann __, Michigan: ARBOR
15. "Haste makes waste," e.g.: ADAGE
16. Color: HUE
19. Tiny six-footer: ANT. Cute clue.
20. James Bond is one: SPY
21. Be itinerant: ROAM
22. "Ho ho ho" holiday guy: SANTA
24. "You're it!" game: TAG
25. James Watt, by birth: SCOT
33. Pago Pago's place: SAMOA
34. Singer Edith known as "The Little Sparrow": PIAF
35. Wicked: EVIL
37. Final notice?: OBIT
38. Taps instrument: BUGLE
39. Dust __: tiny house critter: MITE
40. Panhandles: BEGS
41. "Gotcha": "I SEE". Not "Gotcha!"
42. Problem during sleep: APNEA
46. Hawaiian strings: UKEs. Some are oval we've learned.
47. High-tech rte. finder: GPS. (Global Positioning System)
48. Yummy: TASTY
51. Exclusive: SOLE
53. Hockey great Bobby: ORR
56. __ Wednesday: ASH. Timely.
61. 2016 Olympics city: RIO. Rio de Janeiro, Brazil.
62. Blacksmith's block: ANVIL
63. "Lady and the __": TRAMP. Stored in a carton?
64. Again and again, to bards: OFT. (often)
65. Boglike: PEATY
66. Eye sores: STYEs but then sties can be eye sores, too.
Down:
1. Back talk: SASS
2. Losing casino roll: CRAP
3. How experts do their jobs: ABLY
4. __ juice: milk: MOO
5. Equitably divided: PRO RATA
6. Skylab org.: NASA. 18D. Canceled at 6-Down: NO GO
7. Eve's mate: ADAM
8. Buddy: PAL. 28D. José's 8-Down: AMIGO
9. I problem?: EGO
10. Electric eye, e.g.: SENSOR
11. Word after greater or less: THAN
12. Uncle's mate: AUNT
13. Test version: BETA
23. Efforts: ATTEMPTS
24. Brings forward for inspection: TROTS OUT
25. Mountain climber: SCALER
26. Sidewalk eatery: CAFE
27. Pole tossed in Highlands competitions: CABER
29. Numbered musical works: OPUSes
30. Landlocked African country: NIGER
31. Sheeplike: OVINE
32. Fertilizer ingredient: NITER. Wiki link.
33. Cry hard: SOB
36. Grassland: LEA. Where ovine animals may graze.
38. What muzzled dogs can't do: BITE
42. Sides of an issue: ASPECTS
44. Airport luggage checker: SKYCAP
45. Eye rudely: OGLE
48. Hawaiian food staple: TARO
49. "__ I care!": AS IF
50. Photograph: SHOT
51. "Laugh-In" segment: SKIT
52. Greasy: OILY
53. So-so: OKAY
54. "The __ of the Ancient Mariner": RIME
55. Gym units: REPs
58. "Just __ moment": ONE. "Don't put me on hold!"
59. Egg cells: OVA
60. Leftover morsel: ORT
Argyle