Senior monk (5)
I believe the answer is:
abbot
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">senior monk</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for abbot that I've seen before include "Monastery superior" , "Monks' superior" , "Prior's clerical superior" , "Religious man" , "Head of a community of monks" .)