Toy taken from Tokyo youngster (2-2)
I believe the answer is:
yo-yo
'toy' is the definition.
(yo-yo is a kind of toy)
'taken from tokyo youngster' is the wordplay.
'taken from' indicates the answer is hidden within the clue.
'YO-YO' can be found hidden inside 'tokyo youngster'.
(Other definitions for yo-yo that I've seen before include "Toy made to rise and fall on string" , "Reel-and-string toy" , "Fluctuate repeatedly" , "Toy consisting of a reel and string" , "An up-and-down toy on a string" .)