Iraq's neighbor (4)
I believe the answer is:
iran
'iraq's neighbor' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for iran that I've seen before include "Middle East Islamic republic" , "Modern name for Persia" , "Country lying to south of Caspian sea" , "Tehran is its capital" , "Iraq's neighbour" .)