In a large bowl, toss apples with lemon juice; add the cranberries, raisins and walnuts. Combine the brown sugar, cornstarch, orange zest, cinnamon and nutmeg; add to apple mixture and toss gently to coat., On a floured surface, roll out dough to fit a 9-in. pie plate; transfer to plate. Trim crust to 1/2 in. beyond rim of plate; flute edges. Fill with apple mixture and dot with butter., For topping, combine flour and brown sugar; cut in butter until crumbly. Sprinkle over filling. Bake at 350° for 50-60 minutes or until topping is golden brown and filling is bubbly. If necessary, cover edges with foil during the last 15 minutes to prevent overbrowning.