Fads, crazes (5)
I believe the answer is:
rages
I believe this is a double definition.
'fads' is the first definition.
(I know this)
'crazes' is the second definition.
(I know this)
(Other definitions for rages that I've seen before include "gives anger vent" , "States of extreme anger" , "speaks as Hitler!" , "becomes furious" , "Furies" .)