State makes country not available (7)
I believe the answer is:
indiana
'state' is the definition.
(US state)
'country not available' is the wordplay.
'country' becomes 'india' (India is an example).
'not available' becomes 'na' (abbreviation for not available).
'india'+'na'='INDIANA'
'makes' acts as a link.
(Other definitions for indiana that I've seen before include "The Hoosier State" , "Vice President Pence's state" , "--- Jones, Harrison Ford film character" , "US Midwest state" , "Part of US" .)