Medic cuts hours short and gets around to piles of notes upon notes, perhaps. (6)
I believe the answer is:
chords
'medic cuts' is the definition.
The definition and answer can be both related to communication as well as being plural nouns.
Perhaps you can see a link between them that I can't see?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for chords that I've seen before include "Combinations of notes in harmony" , "Combinations of harmonious notes" , "Combinations of three or more musical notes" , "Combinations of notes sounded together" , "Groups of notes" .)