Theme: Florida - WATERLOGGED ... prescience?
17A. 24-hour broadcaster that keeps you up-to-date: NEWS CHANNEL
23A. Music from Glenn Miller, Tommy Dorsey et al.: BIG BAND SOUND
39A. Ship's area for medical assistance: SICK BAY
50A. Singer dubbed "King of Country": GEORGE STRAIT
62A. Saturated like the ends of 17-, 23-, 39- and 50-Across?: WATERLOGGED
Argyle here, high and dry. Wide-open grid. The reveal feels a little off for coastal features usually filled with water all the time anyway. No, I don't have a better idea.
1. Amount to: COST
5. Evening affair: SOIRÉE
11. Cavern critter: BAT
14. Clarinet cousin: OBOE
15. Many charity golf tournaments: PRO-AMs
16. Wall St. specialist: ARB. (arbitrager)
19. CBS police series with three spin-offs: CSI. (Crime Scene Investigation)
20. Moog, briefly: SYNTH. (synthesizer: electronic musical instrument)
21. Detroit NFLer: LION. Are you ready for some football?
22. Hershey's toffee bar: SKOR. Crossword favorite.
26. Chintzy: CHEAPO
29. Type of waste pump: SUMP. Waterlogged, I'm afraid.
30. Buyer's financing: LOAN
31. Army installation: BASE
35. Last Marx brother, alphabetically: ZEPPO. Herbert Manfred Marx, youngest of the Marx Brothers
38. Well-suited: APT
41. Spy novelist Deighton: LEN
42. Bette's "Divine" nickname: MISS 'M'. (Midler)
44. Bills at bars: TABS
45. Almanac tidbit: FACT
46. Long-running dispute: FEUD
48. Braggart's retort: "I CAN SO!"
55. Doctor Zhivago's love: LARA
56. Island band The __ Men: BAHA. Waterlogged Bahamian band?
57. Garlicky mayo: AIOLI. I like it.
61. Musician's suffix: IST
64. Lawn coating: DEW
65. Exercise pieces: ETUDEs
66. Russian range or river: URAL
67. Symphonic gp. inducted into the Rock and Roll Hall of Fame in 2017: ELO. (Electric Light Orchestra)
68. Head out: DEPART
69. Start of a choosing rhyme: EENY
1. Pen occupants: CONS. Incarcerated.
2. Do what's asked: OBEY
3. Scattered, as seeds: SOWN
4. Nuclear restraint topic: TEST BAN
5. Globe shape: Abbr.: SPH. (Sphere)
6. Dental care brand: ORAL-B
7. Ancient Aegean land: IONIA
8. Talked nonstop: RAN ON
9. Removes errors from: EMENDs
10. Bilingual subj.: ESL. (English as a Second Language)
11. "Just in case" strategy: BACK-UP PLAN
12. Fiery crime: ARSON
13. "Fun, Fun, Fun" car in a 1960s song: T-BIRD
18. Greenside golf shot: CHIP
22. "Win __, lose ... ": SOME
24. Mongolian desert: GOBI
25. Postwar supermodel Parker: SUZY
26. Mollusk in a red or white linguine sauce: CLAM
27. Arizona native: HOPI
28. Consumes enough to nourish mother and unborn child: EATS FOR TWO
32. Play a part: ACT
33. Calypso cousin: SKA
34. Recede, as the tide: EBB
36. Lats relatives: PECS. (Latissimi dorsi and pectoralis major muscles)
37. Not fooled by: ON TO
39. Highly self-satisfied: SMUG
40. Singapore's continent: ASIA
43. Blood bank supply: SERA
45. Exhaustion: FATIGUE
47. Candidates' face-off: DEBATE
49. "So long, Paulo!": "CIAO!"
50. Soar without effort: GLIDE
51. Painter's stand: EASEL
52. Stopped slouching: SAT UP
53. Silents star Bara: THEDA
54. Not as prevalent: RARER
58. Kid lit monster: OGRE
59. Low-fat: LEAN
60. In an aimless fashion: IDLY
62. Married: WED
63. WWII carrier: LST. (Landing Ship, Tank)
Note from C.C.:
Happy Birthday to dear Husker Gary, from whom I learned what patience, compassion and creativity are. Thanks for being here for us, Gary!