Neighbor of Iraq (4)
I believe the answer is:
iran
'neighbor of iraq' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for iran that I've seen before include "Country of western Asia" , "Previously known as Persia" , "Farsi-speaking country" , "Country to east of Iraq" , "Modern-day Persia" .)