Song about leg broken in country (7)
I believe the answer is:
algeria
'country' is the definition.
(I know that Algeria is a country)
'song about leg broken' is the wordplay.
'song' becomes 'aria' (piece of music in an opera).
'about' indicates anagramming the letters.
'broken' is an insertion indicator (inserted letters break into others).
'leg' with letters rearranged gives 'lge'.
'aria' placed around 'lge' is 'ALGERIA'.
'in' acts as a link.
(Other definitions for algeria that I've seen before include "republic in Africa" , "North African country" , "It lies between Morocco and Tunisia" , "country in Africa" , "North African republic" .)