Religious woman (3)
I believe the answer is:
nun
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">religious woman</span>' is the definition.<br/ ><span class="explanation-format__explanation">(woman who has taken religious vows)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for nun that I've seen before include "A palindromic lady in religious order" , "Sister of mercy" , "Domestic fancy pigeon" , "Woman with a habit" , "Holy sister" .)