Crossword Puzzle Just before the hour

Clue: Just before the hour

"___ Thee Every Hour": Lowry (INEED with 5 letters)
H-hour, theatrically (ACTI with 4 letters)
Theater guide? (USHER with 5 letters)
Like a theater in the park (OPENAIR with 7 letters)
Cassandra's theme (DOOM with 4 letters)
Pa. hours (EST with 3 letters)
Prefix with skeleton or thermal (ENDO with 4 letters)
H-hour at a newspaper (PRESSTIME with 9 letters)
Target of the Seven against Thebes (ETEOCLES with 8 letters)
How the other theme answers created this one? (HEARTTRANSPLANTS with 16 letters)