Wild oratory (6)
I believe the answer is:
tirade
'wild oratory' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tirade that I've seen before include "Prolonged abusive speech" , "Furious denunciation" , "Vocal abuse" , "Long, abusive speech" , "A prolonged diatribe" .)