Prepare crust for pizza and shape into a 12 inch circle.
Preheat oven to 500 degrees with a pizza stone in place if you have one. If not, you can use a pizza pan.
Rinse the clams and drain on paper towels. Remove the meat from the clams but reserve eight in the shell to top the pizza. You can put all the clams in the sauce if you prefer not to have shells on top. But, you'll be missing the delicious melted cheese you pull off the hot shells. Chop the clams in quarters. Melt the butter and olive oil in a non-stick skillet. Add the shallot and cook until translucent. Add the garlic and chile paste and cook an additional minute. Add the chopped clams. Remove from heat and allow to cool slightly. Spread the clam topping on the pizza and spread evenly to one inch of the edge of the crust. Sprinkle the mozzarella cheese evenly on top and add the clams in shells to the top of the pizza. Sprinkle the Parmesan and crushed red pepper over the top.
Bake the pizza on the hot pizza stone or on a pizza pan for 12 minutes or until the crust is light brown on the bottom and the cheese is bubbly and beginning to brown in places. Remove from the oven, garnish with parsley, and serve hot.