Coat a large sauté pan with oil and heat to medium-high. Add 3 cloves of minced garlic and cook until golden (be careful not to burn the garlic). Add about two thirds of the clams to the pan along with wine and water. Cover and steam for about 5 minutes until the clams open. Carefully remove the clams and place in a large bowl to cool. (Discard any clams that have not open.) While the clams cool, reduce the wine sauce. When reduced, reserve the wine sauce for later use. When the clams are cooled, remove the meat from the shells and discard the shells.
Using the same pan, add butter, chili flakes, 4 cloves of minced garlic, and onions. Sauté for about 5 minutes until the onion is softened. Add the chopped shrimp, cream, reserved clams, and reduced wine sauce (make sure to not add the grit at the bottom). Stir and add the remaining clams, cover and steam for about five minutes or until the clams open. (Discard any clams that have not open.)