Theme: Don't be left in the dark - Turn on a light, the party has just begun.
27D. Dizzy ... and a hint to the starts of the answers to starred clues: LIGHTHEADED
3D. *Screenwriter's work for the first episode: PILOT SCRIPT. Pilot light
19D . *Orangy Crayola color: NEON CARROT. Neon light
21D. *Simple-to-use: IDIOT PROOF. Idiot light (car dash)
25D. *Symbol of bureaucracy: RED TAPE. Red light
Argyle here. C.C. shines down on us today.
Acrossr:
1. Energizes, with "up": AMPS
5. Onetime TWA rival: PAN AM
10. Lucy's co-star: DESI
14. "Star Wars" princess: LEIA
15. Bakery draw: AROMA
16. "That's so true!": "AMEN!"
17. Misfortunes: ILLS
18. Las Vegas loser's complaint: ROTTEN LUCK
20. ["Get off the stage!"]: [BOO! HISS!]
22. Word with dog, horse or lion: SEA
23. Bank acct. posting: INT. (interest)
24. Critter "in the headlights": DEER
26. Worked hard: TOILED
30. Spoken: SAID
32. Make on the job: EARN
34. Explosive emotion: IRE
35. Eight, en espaƱol: OCHO
36. Like some committees: AD HOC
37. Martini ingredient: GIN
38. Jack of nursery rhymes: SPRAT
39. "Give __ chance!": IT A
40. Grate residue: ASHES
42. Chinese-born architect I.M. __: PEI
43. Techie's hangout: PC LAB
45. "Doggone it!": "RATS!"
46. Dada pioneer Jean: ARP
47. Speak hoarsely: RASP
48. Landmark on Missouri's state quarter: ARCH
49. Georgia, but not Florida: NATION
51. Vatican City currency: EURO
53. Uncanny claim: ESP. (every single perp)
56. Crime syndicate leader: DON
57. What a judge may do during an arraignment: SET BAIL
59. Grecian Formula competitor: JUST FOR MEN
64. Invention beginning: IDEA
65. Roughly 30% of Earth's land area: ASIA
66. Fall zodiac sign: LIBRA
67. Denim pioneer Strauss: LEVI
68. Chimed: RANG. "The church bell chimed till it rang twenty-nine times"
69. "No bid," in bridge: "I PASS"
70. Perfect spot: EDEN
Down:
1. "I was home alone" isn't a very strong one: ALIBI
2. Breakfast fruit: MELON
4. Merit badge holder: SASH
5. Analyzed, as a sentence: PARSED, or a crossword answer.
6. Got out of bed: AROSE
7. "__ again!": NOT
8. Invoice no.: AMT. (amount)
9. Leader with a baton: MAESTRO
10. __ Lama: DALAI
11. Big bird from Down Under: EMU
12. "Hold on a __!": SEC
13. Pentel filler: INK. Pentel is the inventor of non-permanent marker technology.
28. Great Lakes natives: ERIEs. Overmuch information on the Eries. Link.
29. Lairs of lions: DENS
31. "Of course!": "A-HA!"
33. Ill-fated whale chaser: AHAB
35. Rossini creation: OPERA
36. Is home sick: AILS
38. Stretch across: SPAN
41. Cul-de-__: SAC
44. Tubular Italian pastries: CANNOLI
48. Concert milieus: ARENAs
50. Suitcase tie-on: ID TAG
52. App downloaders: USERs
54. Kitchen strainer: SIEVE
55. Opposite of everything, in bageldom: PLAIN
58. Rancor: BILE
59. Jelly holder: JAR
60. Land "across the pond" from the U.K.: USA
61. Gluttony, e.g.: SIN
62. Tear (into): RIP
63. Exec's degree: MBA. (Master of Business Administration)
Now turn out the lights...
Argyle