The country air (6)
I believe the answer is:
anthem
'the country air' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
This is the entire clue.
Can you help me to learn more?
(Other definitions for anthem that I've seen before include "The man for a rousing song" , "National tune" , "National or religious song" , "National hymn" , "air of patriotism?" .)