Country song about guys (7)
I believe the answer is:
armenia
'country' is the definition.
(Armenia is a country)
'song about guys' is the wordplay.
'song' becomes 'aria' (piece of music in an opera).
'about' is an insertion indicator.
'guys' becomes 'men' (guy can mean a man).
'aria' going around 'men' is 'ARMENIA'.
(Other definitions for armenia that I've seen before include "Caucasian republic" , "Republic formerly in the USSR" , "Republic east of Black Sea bordering Turkey, capital Yerevan" , "Mountainous republic bordering Turkey" , "Country in the Caucasus, capital Yerevan" .)