COLLAR is a playable word

collar Scrabble® Dictionary

verb
collared, collaring, collars
to provide with a collar (something worn around the neck)
36 Playable Words can be made from "COLLAR"
   2-Letter Words (5 found)
   3-Letter Words (13 found)
   4-Letter Words (12 found)
   5-Letter Words (5 found)
   6-Letter Words (1 found)