Crossword Puzzle Backup cause

Clue: Backup cause

Gladys Knight's backup (PIPS with 4 letters)
Caused controversy (ROCKEDTHEBOAT with 13 letters)
S.R.O. causers (RAVES with 5 letters)
Girl group who sang backup for the Beach Boys, with "the" (HONEYS with 6 letters)
Mold caused by moisture (MILDEW with 6 letters)
Ridge caused by a blow (WELT with 4 letters)
Swelling caused by water (EDEMA with 5 letters)
Caused by weathering (EROSIONAL with 9 letters)
It's caused by lunar attraction (TIDE with 4 letters)
Backup with bucks (BET with 3 letters)