YELLER is a playable word

yeller Scrabble® Dictionary

noun
pl. yellers
one that yells
24 Playable Words can be made from "YELLER"
   2-Letter Words (4 found)
   3-Letter Words (9 found)
   4-Letter Words (9 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)