Lovers can share it with cream on (7)
I believe the answer is:
romance
'lovers can' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'share it with cream on' is the wordplay.
'cream on' can be anagrammed to 'ROMANCE'.
Though, I'm not sure how the anagram is indicated.
Can you help me to learn more?
(Other definitions for romance that I've seen before include "marriage?" , "Amorous relationship" , "Novel - love story" , "Cameron (anag) - love story" , "Court" .)