It's long, pretty thin, but could be comic (5)
I believe the answer is:
strip
'comic' 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?
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for strip that I've seen before include "Remove covering from" , "Remove clothing" , "Take off clothing" , "Take off one's clothes" , "Empty" .)