CLUTTER is a playable word

clutter Scrabble® Dictionary

verb
cluttered, cluttering, clutters
to pile in a disorderly state
57 Playable Words can be made from "CLUTTER"
   2-Letter Words (6 found)
   3-Letter Words (17 found)
   4-Letter Words (16 found)
   5-Letter Words (11 found)
   6-Letter Words (6 found)
   7-Letter Words (1 found)