In a bowl, mix orange marmalade, ginger, mustard, brown sugar and cloves into a thick glaze.
Place the ham, flat-side-down, into the stoneware liner. *Add enough ginger ale to cover the meat. NOTE: It may be necessary to trim the ham to fit into slow cooker.
Cook in covered slow cooker for 3 1/2-4 hours; test to make sure ham is tender. When ham is fully cooked, gently lift it out of the slow cooker.
Carefully cut away the skin, leaving a thin layer of fat. Brush a generous coat of glaze onto the ham and place on a foil-lined baking tray. Place ham under the broiler for 20 min. until outside is brown & crusty.