Strong expression of public anger (6)
I believe the answer is:
outcry
'strong expression of public anger' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for outcry that I've seen before include "commotion" , "Widespread protest - clamour" , "Furore, uproar" , "Sea eagle" , "Hullabaloo" .)