RATTLER is a playable word

rattler Scrabble® Dictionary

noun
pl. rattlers
one that rattles
71 Playable Words can be made from "RATTLER"
   2-Letter Words (11 found)
   3-Letter Words (23 found)
   4-Letter Words (18 found)
   5-Letter Words (13 found)
   6-Letter Words (5 found)
   7-Letter Words (1 found)