Profit by adventure (7)
I believe the answer is:
exploit
This clue is a double definition.
'profit by' is the first definition.
(thesaurus)
'adventure' is the second definition.
(I've seen this in another clue)
(Other definitions for exploit that I've seen before include "Milk" , "put to good use" , "Make use of - achievement" , "The deed to make gain from" , "Fleece?" .)