Person named in the post (9)
I believe the answer is:
addressee
'person' is the definition.
(addressee is a kind of person)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for addressee that I've seen before include "One contacted" , "Person whose name is on the envelope" , "Recipient of mail" , "Recipent" , "One sent letter" .)