Religious brother (5)
I believe the answer is:
friar
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">religious brother</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 friar that I've seen before include "Mendicant preacher" , "Member of one of the four mendicant orders" , "Monk perhaps" , "Mendicant priest" , "Father" .)