Clever, ingenious (11)
I believe the answer is:
resourceful
I believe this clue is a double definition.
'clever' is the first definition.
(I've seen this before)
'ingenious' is the second definition.
(thesaurus)
(Other definitions for resourceful that I've seen before include "ingenuity" , "Clever, ingenious" , "Able to find ways of coping with problems" , "Quick to find ways of overcoming difficulties" , "Quick-witted" .)