Achieve prominent publicity making banners? (3,3,9)
I believe the answer is:
hit the headlines
'achieve prominent publicity' is the definition.
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for hit the headlines that I've seen before include "were featured prominently" , "use anti-wrinkle treatment?" , "The banners supporting strike" , "Make the front cover" , "made the papers" .)