CLOTS is a playable word

clot Scrabble® Dictionary

verb
clotted, clotting, clots
to form into a clot (a thick mass)
22 Playable Words can be made from "CLOTS"
   2-Letter Words (4 found)
   3-Letter Words (7 found)
   4-Letter Words (9 found)
   5-Letter Words (2 found)