Heat oil in large nonstick skillet over medium-high heat. Add pork and brown on all sides.
Add apple slices, cook and stir for 3 minutes, until apples soften.
Add 1/2 cup wine, reduce heat, cover and simmer 10 minutes.
Add brown sugar, vinegar, cornstarch mixture, Worcestershire, salt and pepper with remaining wine to skillet. Cook over medium heat, stirring constantly until sauce thickens.