Sentence:  Therto haue I a remedye in my thought / That by a <WSD>clewe</WSD> of twyne, as he hath gone / The ſame way he may returne anone / Folowyng alwey y&#868; threde as he hath come. 
Meaning of the word marked with <WSD> tags:  Yarn or thread as used to guide one's way through a maze or labyrinth; a guide, a clue.