GUMSHOEING is a playable word

gumshoe Scrabble® Dictionary

verb
gumshoed, gumshoeing, gumshoes
to investigate stealthily
346 Playable Words can be made from "GUMSHOEING"
   2-Letter Words (32 found)
   3-Letter Words (85 found)
   8-Letter Words (1 found)
   10-Letter Words (1 found)