BACKFIRES is a playable word

backfire Scrabble® Dictionary

verb
backfired, backfiring, backfires
to produce undesirable effects
391 Playable Words can be made from "BACKFIRES"
   2-Letter Words (19 found)
   7-Letter Words (8 found)
   8-Letter Words (2 found)
   9-Letter Words (2 found)