Old man in contemporary music (3)
I believe the answer is:
pop
This clue is a double definition.
'old man' is the first definition.
(both can mean one's father)
'contemporary music' is the second definition.
(pop music)
'in' is the link.
(Other definitions for pop that I've seen before include "Sound of a drawn cork" , "Youthful music for dad?" , "Sound of a balloon bursting" , "Soft drink - father - music - light explosion" , "'American Dad'!" .)