Be a philanthropist? Trump gulped (6)
I believe the answer is:
donate
'be' is the definition.
The answer and definition can be both to do with ownership as well as being verbs in their base form.
Maybe you can see a link between them that I can't see?
'a philanthropist? trump gulped' is the wordplay.
'a philanthropist? trump' becomes 'don' (I am not sure about this - if you are sure you should believe this answer much more).
'gulped' becomes 'ate' (I've seen this in another clue).
'don'+'ate'='DONATE'
Can you help me to learn more?
(Other definitions for donate that I've seen before include "Give - present" , "Make an offer" , "Contribute charitably" , "Make a gift of" , "Give as a gift as to charity" .)