Elected, with upturn in support, in Asian country (5)
I believe the answer is:
india
'asian country' is the definition.
(India is an example)
'elected with upturn in support' is the wordplay.
'elected' becomes 'in'.
'with' says to put letters next to each other.
'upturn in' says the letters should be written in reverse.
'support' becomes 'aid' ('aid' can be a synonym of 'support'**).
'aid' backwards is 'dia'.
'in'+'dia'='INDIA'
'in' acts as a link.
(Other definitions for india that I've seen before include "Commonwealth country, independent in 1947" , "Eastern region" , "The world's most populous democracy" , "Second most populous country in the world" , "Major sub-continent of Asia" .)