LUMPED is a playable word

lump Scrabble® Dictionary

verb
lumped, lumping, lumps
to make into lumps (shapeless masses)
46 Playable Words can be made from "LUMPED"
   2-Letter Words (9 found)
   3-Letter Words (19 found)
   4-Letter Words (11 found)
   5-Letter Words (5 found)
   6-Letter Words (2 found)