Preheat oven to 350°F (175°C). Grease a 9x5 inch loaf pan.
In a large bowl, mix pumpkin puree, oil, eggs, and sugar until well combined.
In another bowl, whisk together gluten-free flour, baking soda, salt, cinnamon, nutmeg, and cloves.
Gradually add dry ingredients to wet ingredients, mixing until just combined.
Pour batter into prepared loaf pan and bake for 60 minutes or until a toothpick inserted into the center comes out clean.
Let the bread cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
For the icing, beat cream cheese and butter until smooth. Add powdered sugar and vanilla extract, and beat until creamy.
Spread icing over cooled pumpkin bread.