Theme: "O, say can you see" - Various terms for flags are the ends of the theme entries.
18A. Real attitude underlying a facade : TRUE COLORS
25A. The Hulk's alter ego : BRUCE BANNER
45A. Song covered by Michael Bublé, say : POP STANDARD
57A. Aunt Jemima competitor : HUNGRY JACK
65A. Flier on a pole, and at the ends of 18-, 25-, 45- and 57-Across : FLAG
Argyle here. Get out and vote. This Tuesday is a good companion for yesterday's puzzle so let's run it up the flag pole and see who salutes it.
Across:
1. Things to wear : GARB
5. Chemists' rooms : LABS. They wear lab coats.
9. One who asks too many questions : PRIER. Where do the pollsters go now?
14. Campus sports gp. : NCAA. (National Collegiate Athletic Association)
15. Irish name for Ireland : ÉIRE
16. Christina of "Speed Racer" : RICCI. IMDb
17. Dough dispensers : ATM's
20. Letter to Santa, essentially : WISH LIST. Seasonal work.
22. Pennsylvania in Washington, for one : AVENUE
23. Summer in Lyon : ÉTÉ. Clearer than when Nancy cooks, eh?
24. Sent a quick note online : IMed. (Instant Message)
30. Barnyard brayer : ASS
33. Woman in Poe's "The Raven" : LENORE
34. J. Paul Getty or J.R. Ewing : OIL BARON. But only one is real.
36. Dubai bigwig : EMIR
37. "... to __ it mildly" : PUT
38. Piece of ice : CUBE
39. Revolutionary toy of the '70s-'80s? : SIT'N SPIN. Cute play on revolutionary.
42. "Boyfriend" singer Justin : BIEBER. This is the first of many musical links today. Link.(2:53)
44. Fr. holy woman : STE.
47. Glasgow vetoes : NAEs
48. Toronto's prov. : ONT. (Ontario)
49. Dining room necessities : CHAIRS
52. Photos at the precinct : MUGSHOTS
59. Auth. unknown : ANON. We all got this one.
60. Perfumer Lauder : ESTÉE
61. "As I see it," online : IMHO. (in my humble opinion)
62. Maker of Duplo toy bricks : LEGO. Duplo is the preschool size of Lego.
63. Just behind the runner-up : THIRD
64. Overly compliant : MEEK
Down:
1. Emulate a beaver : GNAW
2. Play beginning : ACT I
3. Farm butters : RAMS. They butt-ers.
4. Big party : BASH
5. Beatles tune that starts, "When I find myself in times of trouble" : "LET IT BE". Link.(4:09)
6. Like some Navy rescues : AIR/SEA
7. Champagne designation : BRUT. Unsweetened; very dry.
8. Set eyes on : SEE
9. "Ignorance is bliss," e.g. : PROVERB. "Where ignorance is bliss, 'tis folly to be wise." - Thomas Gray
10. Upset : RILED
11. Clickable pic : ICON
12. Sandy-colored : ECRU
13. Levitate : RISE
19. Humped beast : CAMEL. Also ecru.
21. Sidelong look : LEER
24. Mid. name substitute : INIT. (initial)
25. Anoint : BLESS
26. Put the check in the mail : REMIT
27. Bring together : UNITE
28. Veggie on a cob : CORN
29. Pride and prejudice, e.g. : NOUNS. Such trickery on a Tuesday!
30. Caribbean resort : ARUBA
31. Like a teetotaler : SOBER
32. Bergen's dummy Mortimer : SNERD
35. Scored 100 on : ACED. Do they still score tests this way?
37. Domino dots : PIPS
40. Practiced in the ring : SPARRED
41. Art of verse : POESY. Really.
42. Thailand's capital : BANGKOK. Musical link. (3:57)
43. QB's mistakes : INT's. (Quarterback/interception)
46. "Well said" : "TOUCHÉ". French fencing term.
47. African river : NIGER. Map.
49. Atkins of country : CHET. Link.(2:09)
50. Silence : HUSH
51. Pro debater : ANTI
52. Auntie of the stage : "MAME". Link(2:45)
53. 45 minutes, in soccer games : HALF
54. Scott Turow work : "ONE L": The Turbulent True Story of a First Year at Harvard Law School.
55. Roman robe : TOGA
56. Smooch, in Staffordshire : SNOG. Learned from Harry Potter.
58. __-dandy : JIM. Final link.(2:13)
Argyle