METTLES is a playable word

mettle Scrabble® Dictionary

noun
pl. mettles
quality of character
(adjective) mettled
62 Playable Words can be made from "METTLES"
   2-Letter Words (6 found)
   3-Letter Words (17 found)
   5-Letter Words (11 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)