Preheat oven to 180 C / Gas 4. Grease one 23x13cm loaf tin.
Put softened cheese, butter and sugar in mixing bowl. Cream together well. Beat in eggs one at a time until blended. Mix in pumpkin puree.
In another bowl combine flour, bicarbonate of soda, baking powder, salt, cinnamon, cloves and walnuts. Stir until thoroughly mixed. Pour all at once over batter. Stir just enough to moisten. Pour into the prepared loaf tin.
Bake at 180 C / Gas 4 for 60-70 minutes until inserted skewer comes out clean. Cool 10 minutes in tin. Remove to rack to finish cooling.