A girl's songs (6)
I believe the answer is:
carols
'a girl's songs' is the definition.
'carols' can be an answer for 'songs' (carol is a kind of song). I am unsure of the 'a girl's' bit.
'girl's songs' is the wordplay.
'girl' becomes 'carol' (woman's name).
'songs' becomes 's' (this might be a standard abbreviation of which I'm unaware).
'carol'+'s'='CAROLS'
Can you help me to learn more?
(Other definitions for carols that I've seen before include "Seasonal songs" , "Traditional Christmas songs" , "Special songs for Christmas" .)