EXPERT is a playable word

expert Scrabble® Dictionary

verb
experted, experting, experts
to serve as an authority
25 Playable Words can be made from "EXPERT"
   2-Letter Words (6 found)
   3-Letter Words (9 found)
   4-Letter Words (7 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)