Cheers Queensland XV, welcoming X back (7)
I believe the answer is:
regards
'cheers' is the definition.
The definition and answer can be both related to communication as well as being plural nouns.
Perhaps there's an association between them I don't understand?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for regards that I've seen before include "what to put before signature?" , "Heeds" , "Kindly greetings conveyed in a message" , "a well-wisher's utterance" , "word written near end of letter?" .)