Forefather (8)
I believe the answer is:
ancestor
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">forefather</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ancestor that I've seen before include "Forefather" , "One of one's forebears" , "descent comes from one" , "An escort (anag.)" , "Antecedent, forebear" .)