Rigby of song (7)
I believe the answer is:
eleanor
'rigby of song' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for eleanor that I've seen before include "Wife of F. D. Roosevelt" , "Female" , "Near Leo (anag) - girl's name" , "- of Aquitaine, - of Castile (queens)" , "girl" .)