Old man in contemporary music (3)
I believe the answer is:
pop
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">old man</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(both can mean one's father)</span><br/ ><br/ >'<span class="explanation-format__original">contemporary music</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(pop music)</span><br/ ><br/ >'<span class="explanation-format__original">in</span>' is the link.<br/ ></span>
(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'!" .)