Vegetable transported Proust (6)
I believe the answer is:
sprout
'vegetable' is the definition.
(sprout is a type of vegetable)
'transported proust' is the wordplay.
'transported' is an anagram indicator.
'proust' is an anagram of 'SPROUT'.
(Other definitions for sprout that I've seen before include "Grow; vegetable" , "Germinate" , "Spring up like vegetable from Brussels" , "Start growing" , "Young shoot" .)