CLUMBER is a playable word

clumber Scrabble® Dictionary

noun
pl. clumbers
a stocky spaniel
69 Playable Words can be made from "CLUMBER"
   2-Letter Words (8 found)
   3-Letter Words (22 found)
   5-Letter Words (13 found)
   6-Letter Words (3 found)
   7-Letter Words (2 found)