Carrot artist served up (6)
I believe the answer is:
reward
'carrot' is the definition.
(thesaurus)
'artist served up' is the wordplay.
'artist' becomes 'drawer' (drawer is a kind of artist).
'served up' says the letters should be written in reverse (in a down clue, going upwards).
'drawer' written backwards gives 'REWARD'.
(Other definitions for reward that I've seen before include "Present given to mark service or good deed" , "Payment for services rendered" , "Reinforcement for good behaviour" , "Gift in recognition of achievement" , "Appreciative gift offered for drawer" .)