Small section of plant making publicity material (7)
I believe the answer is:
leaflet
'publicity material' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'small section of plant' is the wordplay.
I cannot quite see how this works, but
'section' could be 'leaf' (leaf is a kind of section) and 'leaf' is found within the answer.
The remaining letters 'let' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'making' acts as a link.
Can you help me to learn more?
(Other definitions for leaflet that I've seen before include "Single printed sheet" , "It may advertise" , "Bill, pamphlet" , "Flyer, bill" , "advertising material" .)