Two characters in elevated correspondence? (3,6)
I believe the answer is:
air letter
'elevated correspondence?' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'two characters' is the wordplay.
'two characters' can mean two replacements for 'character'.
'character' becomes 'air' (air can mean a character or mood).
'character' becomes 'letter' (letter is a kind of character).
'air'+'letter'='AIR LETTER'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for air letter that I've seen before include "speedy delivery" , "Item of overseas mail" , "Item of overseas post" .)