Sheik's peer (4)
(Other definitions for agha that I've seen before include "Alternative spelling for a Turkish commander" , "Turkish civil or military leader" , "Ruler" , "Turkish officer" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sheik's peer</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 emir that I've seen before include "Title of various Muslim rulers" , "Middle Eastern ruler" , "Arabic ruler" , "Eastern ruler in mire" , "Eastern chieftain" .)