Not necessarily wealthy or wise (7)
I believe the answer is:
healthy
'wise' is the definition.
Both the answer and definition are adjectives. Maybe there's a link between them I don't understand?
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for healthy that I've seen before include "In good physical or mental shape" , "Free from infirmity or disease" , "Physically well" , "Fit, in sound physical shape" , "In good shape, not ill" .)