SKULKED is a playable word

skulk Scrabble® Dictionary

verb
skulked, skulking, skulks
to move about stealthily
52 Playable Words can be made from "SKULKED"
   2-Letter Words (5 found)
   3-Letter Words (16 found)
   5-Letter Words (7 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)