Legal body that's corrupt use suspect to stitch me up (7,5)
I believe the answer is:
supreme court
'legal body' is the definition.
(supreme body in the justice system)
'corrupt use suspect to stitch me up' is the wordplay.
I cannot really understand how this works, but
'me' is within the answer.
'up' is found in the answer.
This explanation may well be incorrect...
'that's' acts as a link.
(Other definitions for supreme court that I've seen before include "Its judgment is final" , "High legal authority" , "Ultimate US legal panel" .)