Ottoman authority (3)
I believe the answer is:
aga
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ottoman authority</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 aga that I've seen before include "Oven" , "Kitchen range" , "... Khan is a spiritual Muslim leader" , "Muslim title and cooking stove" , "Muslim title of honour" .)