Daughter with musical ability certainly not going for a song! (4)
I believe the answer is:
dear
'certainly not going for a song' is the definition.
I can't tell whether this defines the answer.
'daughter with musical ability' is the wordplay.
'daughter' becomes 'd' (genealogical abbreviation).
'with' says to put letters next to each other.
'musical ability' becomes 'ear' (I've seen this before).
'd'+'ear'='DEAR'
Can you help me to learn more?
(Other definitions for dear that I've seen before include "Honey - costly" , "Costly (but loved!)" , "Darling" , "Pricey" , "Baby" .)