Give up TV for a toy (4-2-3-3)
I believe the answer is:
jack-in-the-box
'a toy' is the definition.
(jack-in-the-box is a kind of toy)
'give up tv' is the wordplay.
'give up' becomes 'jack in'.
'tv' becomes 'the box' (I've seen this before).
'jackin'+'thebox'='JACK-IN-THE-BOX'
'for' acts as a link.
(Other definitions for jack-in-the-box that I've seen before include "Toy with pop-up figure" , "One might spring a surprise!" , "Sprung toy" , "Toy that springs up" , "Springing toy" .)