Parcels man mentioned (4)
I believe the answer is:
'parcels man mentioned' is the definition.
I can't tell whether this defines the answer.
'man mentioned' is the wordplay.
'man' becomes 'male'.
'mentioned' indicates a 'sounds like' (homophone) clue.
'male' is a homophone of 'MAIL'.
Can you help me to learn more?
(Other definitions for mail that I've seen before include "some self-defence material" , "Form of armour; post" , "Posted letters" , "Letters and parcels" , "Letters - armour" .)