TINKERING is a playable word

tinker Scrabble® Dictionary

verb
tinkered, tinkering, tinkers
to repair in an unskilled or experimental manner
127 Playable Words can be made from "TINKERING"
   2-Letter Words (11 found)
   3-Letter Words (29 found)
   8-Letter Words (2 found)
   9-Letter Words (1 found)