Combine apple jelly, mustard, lemon juice, and cinnamon in a sauce pan; bring to boil over medium heat, stirring occasionally.

Set aside. Take ham and ??? with whole cloves.

Place ham on shallow rack in roasting pan.

Bake uncovered @ 325 - 10 minutes per pound.

Baste every 15 to 20 min with sauce.

Heat remaining sauce and serve with ham.