Alternatively this can be put into the rigatoni on the left - it's kind of rustic (8)
I believe the answer is:
pastoral
This clue might be a double definition.
'alternatively this can be put into the rigatoni on the left it's kind' is the first definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
'rustic' is the second definition.
(synonyms)
'of' is the link.
Can you help me to learn more?
(Other definitions for pastoral that I've seen before include "to do with priestly duties" , "Depicting rural life" , "Country style" , "To do with shepherds, or concerned with spiritual guidance" , "Portraying romanticised country life" .)