CUSPS is a playable word

cusp Scrabble® Dictionary

noun
pl. cusps
a pointed end
(adjective) cuspal, cuspate, cuspated, cusped
15 Playable Words can be made from "CUSPS"
   2-Letter Words (2 found)
   3-Letter Words (5 found)
   4-Letter Words (6 found)
   5-Letter Words (2 found)