Can he dispense the wisdom of the ages? (4)
I believe the answer is:
sage
'can he dispense the wisdom' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'the ages?' is the wordplay.
'ages' can be anagrammed to 'SAGE'.
But, I am not sure how this is indicated.
'of' is the link.
Can you help me to learn more?
(Other definitions for sage that I've seen before include "Wise man - flavoursome plant" , "Herb for the wise one" , "Learned" , "Herb used in cooking" , "___ and onion" .)