Printed notice (7)
I believe the answer is:
placard
'printed notice' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for placard that I've seen before include "Slogan or message of protest on board" , "Sign for public display" , "Bill" , "Make card, pal, into kind of ad" , "what may be carried in a demo" .)