"There was a bit of a last night, yes? Some very extreme , yes?” (Deltoid in A Clockwork Orange (film)) (9)

I believe the answer is:

nastiness

(Other definitions for nastiness that I've seen before include "Malevolence" , "repugnance" , "Pollution" , "hostility" , "Unpleasant behaviour" .)

I've seen this clue in The Times.

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"There was a bit of a ____ last night, yes? Some very extreme ____, yes?” (Deltoid in A Clockwork Orange (film)) (9)