GUIDER is a playable word

guider Scrabble® Dictionary

noun
pl. guiders
one that guides
45 Playable Words can be made from "GUIDER"
   2-Letter Words (6 found)
   3-Letter Words (18 found)
   4-Letter Words (15 found)
   5-Letter Words (5 found)
   6-Letter Words (1 found)