Hoopla (4)
I believe the answer is:
hype
'hoopla' is the definition.
(I know that hoopla can be written as hype)
This is all the clue.
(Other definitions for hype that I've seen before include "Overdo promotion" , "racket" , "Advert" , "Extravagant publicity or promotion" , "Huge publicity" .)