Extravagant fuss (8)
I believe the answer is:
ballyhoo
'extravagant fuss' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for ballyhoo that I've seen before include "Extravagant publicity or fuss" , "Great fuss" , "Fuss; commotion" , "Noisy confused situation" , "Hubbub" .)