Preheat oven to 375F and pepare a 9 x 5 loaf pan by lightly greasing the bottom and sides.
In the bowl of a stand mixer cream together sugar, cream cheese and unsalted butter until smooth. Add eggs one at a time being sure to mix well after each addition. Add pumpkin puree and continue mixing until it has been fully incorporated.
In a medium bowl whisk together flour, baking soda, salt, pumpkin pie spice, baking powder and cloves. Add the dry ingredient mixture to the batter roughly 1 cup at a time until the ingredients have been fully incorporated, but being sure not to over mix. Fold in nuts using a rubber spatula.
Pour batter into the prepared loaf pan and bake for 55-60 minutes or until a toothpick comes out clean.
Remove the loaf pan from the oven and allow the bread to cool in the pan for 10 minutes before removing the loaf and allowing it to cool completely on a wire rack.