Notice copied to a number of people (8)
I believe the answer is:
circular
'notice copied to a number of people' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for circular that I've seen before include "Round kind of bulletin?" , "that's passed through a rectangular slot?" , "Leaflet for mass distribution" , "Notice for wide distribution" , "Round; general letter" .)