Well-to-do (8)
I believe the answer is:
affluent
'well-to-do' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for affluent that I've seen before include "Well-heeled" , "Wealthy - abundant" , "Wealthy, rich" , "Well-to-do, wealthy" , "Flute fan may be wealthy" .)