Anger with his criminal trials (8)
I believe the answer is:
hearings
'trials' is the definition.
(legal hearings)
'anger with his criminal' is the wordplay.
'with' says to put letters next to each other.
'criminal' indicates an anagram.
'anger' after 'his' is 'hisanger'.
'hisanger' with letters rearranged gives 'HEARINGS'.
(Other definitions for hearings that I've seen before include "Trials without juries, sound audible" , "Court sessions in which testimony is taken" , "judicial enquiries" .)