Mideast title (4)
I believe the answer is:
emir
'mideast title' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for emir that I've seen before include "Title of various Muslim rulers" , "Ruler in the Middle East and mire" , "Eastern ruler in mire" , "leader in the East" , "Local chief" .)