A wise man changes as he grows older (4)
I believe the answer is:
ages
This clue could be a double definition.
'a wise' is the first definition.
(I've seen this in another clue)
'grows older' is the second definition.
('age' can be a synonym of 'grow older')
'man changes as he' is the link.
I am not very happy about this link. Some or all of it may belong to one of the definitions.
Can you help me to learn more?
(Other definitions for ages that I've seen before include "Sage (anag)" , "Historical eras" , "Gets older" , "Matures" , "Long periods" .)