Walkman descendant (4)
I believe the answer is:
ipod
'walkman descendant' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ipod that I've seen before include "listening device" , "Music player" , "Familiar gadget" , "Brand of portable digital media player" , "Pocket-sized device for playing music" .)