Crossword Puzzle Hit upon the solution

Clue: Hit upon the solution

Hits theaters (OPENS with 5 letters)
Composer of Hitchcock's theme (GOUNOD with 6 letters)
Hitchcock put-down re thespians (ACTORSARECATTLE with 15 letters)
Hitler's blitzkreig theory was based on the _____ (WORKOFABRITISHHISTORIAN with 23 letters)
Rear seating section in a theater (PARTERRE with 8 letters)
Roy Rogers' theme song (HAPPYTRAILS with 11 letters)
It's far from hard-hitting journalism (PUFFPIECE with 9 letters)
She came to Theseus' aid (ARIADNE with 7 letters)
N.Y.C. theater group (ANTA with 4 letters)
Hits the gas (e.g. GUNSIT with 6 letters)