Disturbance in court out of control (7)
I believe the answer is:
ruction
'disturbance' is the definition.
(I've seen this before)
'in court out of control' is the wordplay.
'out of control' indicates anagramming the letters.
'in'+'court'='incourt'
'incourt' anagrammed gives 'RUCTION'.
(Other definitions for ruction that I've seen before include "Disturbance, quarrel" , "Find a disturbance in cut iron" , "Racket" , "Noisy disturbance" , "Uproar" .)