Unclose, poetically (3)
I believe the answer is:
ope
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">unclose poetically</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ope that I've seen before include "Unlock, undo (poetic)" , "Literary form of open" , "Undo, unfold (poetic)" , "moon about, missing maiden" .)