Before, in poetry (3)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">before in poetry</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 "Old word for before" , "Before (poetic)" , "Archaic word for before - a palindrome" , "Before (literary)" , "Before (in poetry)" .)