COCKLE is a playable word

cockle Scrabble® Dictionary

verb
cockled, cockling, cockles
to wrinkle or pucker
18 Playable Words can be made from "COCKLE"
   2-Letter Words (4 found)
   3-Letter Words (7 found)
   4-Letter Words (5 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)