CLEVERER is a playable word

clever Scrabble® Dictionary

adjective
cleverer, cleverest
mentally keen
(adverb) cleverly
32 Playable Words can be made from "CLEVERER"
   2-Letter Words (3 found)
   3-Letter Words (12 found)
   4-Letter Words (5 found)
   5-Letter Words (6 found)
   6-Letter Words (4 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)