Song about fellows in the country (7)
I believe the answer is:
armenia
'country' is the definition.
(I've seen this before)
'song about fellows' is the wordplay.
'song' becomes 'aria' (aria is a kind of song).
'about' is an insertion indicator.
'fellows' becomes 'men' (I've seen this before).
'aria' placed around 'men' is 'ARMENIA'.
'in the' acts as a link.
(Other definitions for armenia that I've seen before include "Republic east of Black Sea bordering Turkey, capital Yerevan" , "Landlocked country, an Asian soviet before 1991, capital Yerevan" , "Former Soviet republic of south-east Europe, capital Yerevan" , "Caucasian republic" , "Former Russian republic, its capital Yerevan" .)