Crossword Puzzle Moves through the muck

Clue: Moves through the muck

Moves, as a theater patron (RESEATS with 7 letters)
1989 Halloween-themed horror film (PUMPKINHEAD with 11 letters)
Thespian's prize (OSCAR with 5 letters)
Theme of the starred entries (BEFORETAXES with 11 letters)
Appear correct, as a theory (WASH with 4 letters)
Composer of Carson's theme (ANKA with 4 letters)
Theatrical floodlight (OLIVET with 6 letters)
Vet's theater (NAM with 3 letters)
Muck one's hand (FOLD with 4 letters)
Easy A (or where to learn about this puzzle's theme?) (GUTCOURSE with 9 letters)