Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a large bowl, whisk together the flour, sugar, baking powder, salt, cinnamon, nutmeg, ginger, and cloves until well combined.
Add the cold cubed butter to the dry ingredients. Using a pastry cutter, two forks, or your fingertips, work quickly to cut the butter into the flour mixture until it resembles coarse crumbs with some pea-sized pieces remaining.
In a separate bowl, whisk together the pumpkin puree, heavy cream, egg, and vanilla until smooth.
Pour the wet ingredients into the dry mixture and fold gently with a spatula just until a shaggy dough forms. Be careful not to overmix.
Turn the dough onto a lightly floured surface and pat it into an 8-inch circle about 1-inch thick. Using a sharp knife, cut the circle into 8 equal wedges.
Transfer the wedges to your prepared baking sheet, leaving about 2 inches between each one to allow for expansion.
Bake for 18-22 minutes, or until the scones are golden brown around the edges and a toothpick inserted into the center comes out clean.
Allow them to cool on the baking sheet for 5 minutes before transferring to a wire rack.
While the scones are cooling, whisk together the powdered sugar and maple syrup in a small bowl. Add milk or cream, one tablespoon at a time, until you reach your desired consistency.
Once the scones have cooled for about 10 minutes (still slightly warm), drizzle the maple glaze generously over each one.