Roast Turkey with Sage and Sherried Cider Giblet Gravy

Preheat oven to 425 ° F. Rinse turkey and pat dry inside and out. Season turkey inside and out with salt and pepper and pack neck cavity with 1 lemon wedge, 1 sage sprig, and 1 bread slice. Fold neck skin under body and fasten with a skewer. Fill body cavity with apple, onion, 3 sage sprigs, and remaining lemon wedge and bread slice and truss turkey. Rub turkey with remaining 3 sage sprigs and arrange sprigs on a rack set in a roasting pan. Spread turkey with butter and arrange on rack in roasting pan. Roast turkey in middle of oven 30 minutes. Reduce temperature to 325 ° F. and baste turkey with pan juices. Add water to roasting pan and roast turkey, basting every 20 minutes, 2 1/2 to 3 hours more, or until a meat thermometer inserted in fleshy part of a thigh registers 180 ° F. and juices run clear when thigh is pierced. Transfer turkey to a heated platter, reserving juices in roasting pan, and discard string. Keep turkey warm, covered loosely with foil.