Heat oven to 350. Line a roasting pan w/ foil. Place ham on roasting rack, place in pan. Roast, uncovered 45 min. In small saucepan, stir together jam, juice, and ground cloves. Heat over low until melted & combined. Spoon 1/2 the sauce over ham. Tent ham w/ foil. Roast for another 1-1/2 hrs. Stir mustard into remaining sauce and heat through. Serve remaining sauce w/ ham.