Literary correspondent? (3,2,7)
I believe the answer is:
man of letters
'literary correspondent?' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
This is all the clue.
Can you help me to learn more?
(Other definitions for man of letters that I've seen before include "Literary type" , "Lexicographer < is a scholar" , "chap in epistolatory relations" , "from academia?" , "Postal worker" .)