Feature of corgi very like a donor (5)
I believe the answer is:
giver
'a donor' is the definition.
('giver' can be a synonym of 'donor')
'feature of corgi very like' is the wordplay.
'feature of' says the answer is hidden in the clue.
'GIVER' is hidden in the letters of 'corgi very like'.
(Other definitions for giver that I've seen before include "Bestower" , "Present source" , "presenter" , "Donor" .)