STIRKS is a playable word

stirk Scrabble® Dictionary

noun
pl. stirks
a young cow
39 Playable Words can be made from "STIRKS"
   2-Letter Words (5 found)
   3-Letter Words (12 found)
   4-Letter Words (14 found)
   5-Letter Words (6 found)
   6-Letter Words (2 found)