TILLER is a playable word

tiller Scrabble® Dictionary

verb
tillered, tillering, tillers
to put forth stems from a root
43 Playable Words can be made from "TILLER"
   2-Letter Words (8 found)
   3-Letter Words (12 found)
   4-Letter Words (14 found)
   5-Letter Words (7 found)
   6-Letter Words (2 found)