CRESTS is a playable word

crest Scrabble® Dictionary

verb
crested, cresting, crests
to reach a crest (a peak)
35 Playable Words can be made from "CRESTS"
   2-Letter Words (5 found)
   3-Letter Words (11 found)
   4-Letter Words (12 found)
   5-Letter Words (6 found)
   6-Letter Words (1 found)