Theme: Hidden Word - A word hidden in the middle of four responses and the reveal in the middle of the puzzle.
17A. Presidency's last days, e.g. : END OF AN ERA
25A. Pre-cable reception aid : ROOF ANTENNA
36A. Anonymous writer, maybe, and a hint to the devotee hidden in 17-, 25-, 50- and 60-Across : SECRET ADMIRER
50A. Commentator dissecting chips and putts : GOLF ANALYST
60A. Usual sitcom length (including ads) : HALF AN HOUR
Argyle here, right in the open. C.C. has a seven letter column dead center. Not a common grid but some of the best fill is in those columns. I'm a fan. (Not a secret.)
Across:
1. Rifle filler : AMMO
5. Campus bigwigs : DEANS
10. Ending for brides, chamber or milk : MAID
14. Teller of fibs : LIAR
15. Humanlike machine of sci-fi : ROBOT
16. Edit menu option : UNDO
19. '90s TV title toon teen : DOUG. Mostly unknown to me. Wiki.
20. Attaches with string : TIES ON
21. Prefix with deed or lead : MIS
23. Quaint lodging : INN
24. Six-pack muscles : ABs
29. Stop for a moment : PAUSE
31. Abolish : BAN
32. Leading the field : ON TOP
33. Three: Pref. : TRI
34. Rapper __ Kim : LIL'
35. PC key near Ctrl : ALT
41. Kit__: candy bar : KAT. Stocked up for Halloween?
42. "Bossypants" memoirist Tina : FEY
43. "__ you ready?" : ARE
44. Fire-setting crime : ARSON
47. Boxing count : TEN
48. Gets a glimpse of : SPOTS
53. Bro or sis : SIB
54. Expected landing hr. : ETA
55. Wobbly walker : TOT
56. Green film on bronze : PATINA. And what have we learned about PATINA from Antiques Roadshow? Leave the PATINA alone.
58. Clear liquors : GINS
63. First chip in a pot : ANTE
64. "In other words ... " : "I MEAN ... "
65. Cabinet dept. concerned with nukes : ENER. (Energy)
66. Leaning Tower city : PISA
67. Stadium levels : TIERS
68. __ buco: veal dish : OSSO
Down:
1. Brewpub fixture : ALE TAP
2. Typically 18-inch-long baseball collectibles : MINI-BATS. A budding FAN.
3. Double-checked : MADE SURE
4. Gold medals, to Spaniards : OROs
5. Pipe clog dissolver : DRANO
6. Scads of centuries : EON
7. Prez on a penny : ABE
8. Painter Rockwell : NORMAN. Happy Fan.
9. A red wine one is hard to get out : STAIN
10. Stick-in-the-__ : MUD
11. Consecrate using oil : ANOINT
12. "Beats me" : "I DUNNO"
13. Steal a pup : DOGNAP
18. Links warning : "FORE!"
22. Vodka order, familiarly : STOLI. (Stolichnaya)
26. Memorial column, for short : OBIT
27. Pita filling : FALAFEL. Main ingredients: Fava beans or chickpeas.
28. Catch in a sting : ENTRAP
30. Bored with : SICK OF
34. Permit : LET
35. "Trainwreck" actress/screenwriter Schumer : AMY
37. Attacked on foot : RAN AT
38. Reject as false : DENY
39. Causes of disappearing beaches : EROSIONS
40. Entourages : RETINUES
44. Issue in May-December romances : AGE GAP
45. Spiral pasta : ROTINI
46. Slopes : SLANTS
47. Japanese floor mat : TATAMI
48. Laurel of Laurel and Hardy : STAN
49. "Handmade fresh all day" pizza chain : SBARRO
51. Like three Cy Young games : NO HIT
52. Bridge measures : SPANS
57. "The Cosby Show" son : THEO. Malcolm-Jamal Warner.
59. Baltic or Aegean : SEA
61. Sara whom "nobody doesn't like" : LEE
62. At a distance : FAR
Argyle