CALLBACKS is a playable word

callback Scrabble® Dictionary

noun
pl. callbacks
a recall of a defective product
87 Playable Words can be made from "CALLBACKS"
   2-Letter Words (7 found)
   3-Letter Words (23 found)
   6-Letter Words (4 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)