I re-echo the salutation (7)
I believe the answer is:
cheerio
'salutation' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'i re-echo' is the wordplay.
'i re-echo' can be anagrammed to 'CHEERIO'.
Though, I am not clear how this is indicated.
'the' is the link.
Can you help me to learn more?
(Other definitions for cheerio that I've seen before include "Expression used when leaving" , "An informal hearty goodbye" , "Bye" , "Bye-bye" , "See you" .)