Asian and European country without borders (5)
I believe the answer is:
omani
'asian' is the definition.
(Oman is an Asian country)
'european country without borders' is the wordplay.
'european country' becomes 'romania' (country in Europe).
'without borders' says to take the centre (the borders of the word are removed).
The middle letters of 'romania' are 'OMANI'.
'and' is the link.
(Other definitions for omani that I've seen before include "Gulf Arab" , "coming from the Middle East" , "Naomi (anag) -- from Muscat?" , "Eg, a native of Muscat" , "Gulf native" .)