Wrong? French department's suffering with pretty random marking (13)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

TORT (legal term for a wrong action or inaction) + OISE’S (belonging to Oise, a department, or administrative region, in the north of France: département in French) + HELL (suffering). The appearance of polished slices of a tortoise’s shell (a random pattern in shades of brown and orange), or something resembling it (such as a cat’s fur).