CRUMBLE is a playable word

crumble Scrabble® Dictionary

verb
crumbled, crumbling, crumbles
to break into small pieces
69 Playable Words can be made from "CRUMBLE"
   2-Letter Words (8 found)
   3-Letter Words (22 found)
   5-Letter Words (13 found)
   6-Letter Words (3 found)
   7-Letter Words (2 found)