CHATTER is a playable word

chatter Scrabble® Dictionary

verb
chattered, chattering, chatters
to talk rapidly and trivially
(adjective) chattery
112 Playable Words can be made from "CHATTER"
   2-Letter Words (12 found)
   3-Letter Words (29 found)
   6-Letter Words (3 found)
   7-Letter Words (2 found)