Brings to court (4)
'brings to court' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for sues that I've seen before include "Proceeds legally against" , "Takes to court" , "Takes legal action against" , "Institutes legal proceedings against" , "Takes a case against" .)
(Other definitions for arraigns that I've seen before include "Accuses, indicts" , "Calls to court to answer an indictment" , "Accuses, finds fault with -often in court" .)