Before of yore (3)
I believe the answer is:
ere
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">before of yore</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ere that I've seen before include "Before, poetically" , "Archaic word for before - a palindrome" , "Before (literary)" , "Before (lit.)" , "Before (in time)" .)