Preheat the oven to 275°F and line a deep roasting pan with foil. Place the ham flat-side down in the pan and then cover loosely with foil. Cook 15 minutes per pound or until an inserted thermometer reads 135°F.
Meanwhile, in a pot whisk together the brown sugar, coffee, mustard, cinnamon, black pepper, salt, and clove. While stirring, cook on low heat until slightly reduced and glistening, about 5 minutes.
Once the ham is warmed, remove it from the oven and turn up the heat to 425°F. Brush all sides of the ham with the glaze, and then return the ham to the oven. Cook uncovered for 15-20 minutes or until the glaze is browned and glossy. Allow the ham to rest for 20 minutes before serving. Serve with the pan juices on the side, if you like.