Bishop's area (7)
I believe the answer is:
diocese
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bishop's area</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 diocese that I've seen before include "District under a bishop's authority" , "Bishop's see" , "Bishop's region" , "Area under bishop" , "I see cod (anag)" .)