Middle Eastern country without borders (5)
I believe the answer is:
omani
'middle eastern' is the definition.
(I've seen this before)
'country without borders' is the wordplay.
'country' becomes 'romania' (Romania is an example).
'without borders' indicates the central letters (the letters on the sides of the word are removed).
The centre of 'romania' is 'OMANI'.
(Other definitions for omani that I've seen before include "Middle East national" , "coming from the Middle East" , "Gulf native" , "Citizen of a country, capital Muscat" , "One from Muscat" .)