Short-lived fashion (4)
'short-lived fashion' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for fad that I've seen before include "A craze, usually passing" , "Affectation" , "Passionate interest" , "A craze or current vogue" , "A passing fashion or craze" .)
(Other definitions for rage that I've seen before include "Wrath" , "Anger - fashion" , "Be furious" , "Fad or anger" , "Fierce anger" .)