CLACKS is a playable word

clack Scrabble® Dictionary

verb
clacked, clacking, clacks
to make an abrupt, dry sound
23 Playable Words can be made from "CLACKS"
   2-Letter Words (4 found)
   3-Letter Words (9 found)
   4-Letter Words (5 found)
   5-Letter Words (4 found)
   6-Letter Words (1 found)