One man’s share of sophistication (3)
I believe the answer is:
his
'one man's' is the definition.
(thesaurus)
'of sophistication' is the wordplay.
'of' says the answer is hidden in the clue.
'HIS' is hidden within 'sophistication'.
'share' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for his that I've seen before include "To - Coy Mistress (Marvell)" , "that chap's" , "Belonging to the male" , "It belongs to him" , "Belonging to that man" .)