Give what a fellow consumed (6)
I believe the answer is:
donate
'give' is the definition.
(donating is a kind of giving)
'what a fellow consumed' is the wordplay.
'what a fellow' becomes 'don' (both can mean an academic).
'consumed' becomes 'ate' (to eat is to consume food).
'don'+'ate'='DONATE'
(Other definitions for donate that I've seen before include "Fork out" , "Give to a charity or good cause" , "Make a gift of" , "Give (money) to a good cause" , "Give (transplant organ)" .)