Wash the pears and orange then cut into quarters. Seeds, peels and stems are OK. Place the fruit in the bottom of your slow cooker Add the cinnamon sticks, star anise, ginger slices, nutmeg and cloves.Fill to the top of the slow cooker with water, leaving about an ¼-1/2-inch of space at the top. Cook on high heat for 3-4 hours or on low heat for 6-8 hours.An hour before the cider is done cooking, use a potato masher to mash the fruit once it is softened. Cook for an additional hour.Strain the pear cider through a fine-mesh strainer or cheese cloth into a clean pitcher or pot, pressing on the solids to get all of the juice out of the fruit. Stir in the maple syrup until it is dissolved and serve hot.The cider can be stored in a heat-safe container for up to 5 days.