Theme: [error] - Right or wrong, they get changed sometimes. Other times, they get mist(sic) - TYPO is hidden in each theme entry.
17. Wet blanket : PARTY POOPER
24. Poverty symbol : EMPTY POCKETS
47. Power line holders : UTILITY POLES
58. Smartphone texting feature, which usually detects and fixes the thing hidden in 17-, 24- and 47-Across : AUTOCORRECT
Argyle here but hardly needed.
Across:
1. Sounds of disbelief : GASPS
6. Old French money : FRANC
11. Snip : CUT
14. Disney mermaid : ARIEL
15. "Star-cross'd" lover : ROMEO
16. Genetic material : RNA
19. Devilish child : IMP
20. Tongue trouble? : SLIP
21. Philosophy suffix : ISM
22. Valley where Hercules slew a lion : NEMEA. Not just any lion; the Nemean lion was a vicious monster.
28. Over-the-fence blasts : HOMERS
31. Orchestral reeds : OBOEs
32. Five Norwegian kings : OLAVs
33. Periodic pork sandwich at the Golden Arches : McRIB
35. Beer holder : CAN
38. Canoeing site : LAKE
39. Organ features : PIPES
40. Architect Saarinen : EERO
41. Easter egg coloring : DYE
42. "What a pity!" : "SO SAD!"
43. Brings into harmony : SYNCs
44. "Land __ alive!" : SAKES
46. Taco topping : CHEESE
51. Fertilizer compound : NITER
52. Otto I's realm: Abbr. : HRE. (Holy Roman Empire)
53. Has a mortgage, say : OWES
57. Brylcreem amount : DAB
62. "__ tu": Verdi aria : ERI
63. Delicate dishes : CHINA
64. Steel plow pioneer : DEERE
65. Joplin's "Maple Leaf __" : RAG
66. Annual sports awards : ESPYs. from ESPN.
67. Invite from the balcony : ASK UP
Down:
1. Generational disconnects : GAPS
2. Shrunken Asian sea : ARAL
3. Voice of the iPhone : SIRI
4. Personal source of annoyance : PET PEEVE
5. Like a fox : SLY
6. Cold-morning pumpkin coating : FROST
7. Spacious : ROOMY
8. Piece of music festival gear : AMP
9. Maiden name preceder : NÉE
10. Barbecue discard : CORNCOB
11. Area where evidence is gathered : CRIME SCENE
12. Yet to be realized : UNMET
13. Barcelona bar bites : TAPAS
18. Spots on a die : PIPS
23. Scratch (out), as a living : EKE
25. "__ Doubtfire" : MRS.
26. Read carefully : PORED
27. Japanese sashes : OBIs
28. Hang on to : HOLD
29. Fresh Effects skin care brand : OLAY
30. Succeeds and then some : MAKES IT BIG
33. Rapper Elliott : MISSY. Knot 4 me
34. Tax law expert: Abbr. : CPA. (Certified Public Accountant)
36. Curved paths : ARCs
37. Battery-free smoke detector? : NOSE
39. Pound or Pope : POET
40. Condemned buildings, say : EYESORES
42. Slalom, e.g. : SKI RACE
43. Byron's "__ Walks in Beauty" : SHE
45. Dark or pale brew : ALE
46. Egyptian queen played by Liz : CLEO
47. Sedated : UNDER
48. Pageant accessory : TIARA
49. Counterfeit : PHONY
50. SeaWorld swimmers : ORCAs
54. The Beatles' "Eight Days a __" : WEEK
55. Neutral hue : ECRU
56. Prefix in combined families : STEP
59. Sounds of hesitation : UHs
60. Piece of advice : TIP
61. Old vitamin bottle no. : RDA. (Recommended Dietary Allowance)
Argyle