EXCUSER is a playable word

excuser Scrabble® Dictionary

noun
pl. excusers
one that excuses
64 Playable Words can be made from "EXCUSER"
   2-Letter Words (6 found)
   3-Letter Words (18 found)
   5-Letter Words (12 found)
   6-Letter Words (7 found)
   7-Letter Words (1 found)