Guy mentioned in post (4)

I believe the answer is:

mail

'post' is the definition.
(synonyms)

'guy mentioned' is the wordplay.
'guy' becomes 'male' (guy can mean a man).
'mentioned' indicates a 'sounds like' (homophone) clue.
'male' sounds like 'MAIL'.

'in' acts as a link.

(Other definitions for mail that I've seen before include "Armour; posted items" , "Send message" , "Paper" , "Post in America" , "Letters - armour" .)

I've seen this clue in the Sydney Morning Herald.

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