Broken romance? (6)
I believe the answer is:
serial
'broken romance?' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps there's a link between them I don't understand?
This is all the clue.
Can you help me to learn more?
(Other definitions for serial that I've seen before include "Continuous, perhaps like mulitple killer ( 6)" , "Of continuous nature - maybe a killer" , "Program that's often on" , "Soap opera, e.g." , "Story made up of consecutive parts" .)