RIOTER is a playable word

rioter Scrabble® Dictionary

noun
pl. rioters
one that riots
35 Playable Words can be made from "RIOTER"
   2-Letter Words (10 found)
   3-Letter Words (11 found)
   4-Letter Words (11 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)