"In rustic style." Usually refers to dishes made with mushrooms, pancetta and Parmesan cheese, onions and tomatoes.
Baked in clay, with no fat or, usually, seasoning. It particularly applies to pheasant and guinea fowl.
"Devilled." This usually indicates the presence of chillis in a piquant sauce, often quite fiery. It may also refer to grilled meats which have been marinated in a spiced marinade with lots of black pepper.