LURKER is a playable word

lurker Scrabble® Dictionary

noun
pl. lurkers
one that lurks
18 Playable Words can be made from "LURKER"
   2-Letter Words (3 found)
   3-Letter Words (7 found)
   4-Letter Words (5 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)