Certain patron's interests (4)
I believe the answer is:
arts
'certain patron's interests' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for arts that I've seen before include "Creative activities such as painting and music." , "A degree" , "Wiles, skills" , "Star over aesthetic endeavours" , "Aesthetic creations for a star" .)