Crossword Puzzle Gives the goad-ahead?

Clue: Gives the goad-ahead?

Gave the goad-ahead? (PRODDED with 7 letters)
Former circus-themed breakfast cereal from General Mills (KABOOM with 6 letters)
Does a thespian's job (ACTS with 4 letters)
Theme from "The Zoo Story"? (ALBEESEEINGYOU with 14 letters)
Like an encrypted transmission, in theory (SECURE with 6 letters)
Theater group, for short (REP with 3 letters)
Move on ahead (PASS with 4 letters)
Jason's theft (GOLDENFLEECE with 12 letters)
Theatre box (LOGE with 4 letters)
Friend of Theodore and Simon (ALVIN with 5 letters)