Preparation Heat olive oil in small deep saucepan over medium-low heat. Add garlic, 3/4 teaspoon lemon peel, and crushed red pepper. Sauté until garlic is soft, about 3 minutes. Add wine, increase heat, and boil until mixture is reduced to 1 cup, about 6 minutes. Remove sauce from heat; mix in lemon juice, anchovies, 1 tablespoon parsley, and remaining 3/4 teaspoon lemon peel. Season with coarse salt. DO AHEAD Can be made 2 hours ahead. Let stand at room temperature. Rewarm before using. Prepare barbecue (high heat). Arrange clams on grill rack. Cover grill. Cook clams 5 minutes. Uncover and cook without turning until clams open. Transfer to rimmed baking sheet as they open, retaining juices in shells, about 5 minutes longer (discard any clams that do not open). Meanwhile, cook pasta in large pot of boiling salted water until just tender but still firm to bite. Drain pasta and divide among 4 large shallow bowls. Arrange 12 clams in shells with juices on pasta in each bowl. Spoon sauce over. Garnish with lemon wedges and sprinkle with 1 tablespoon parsley.
Preparation Heat olive oil in small deep saucepan over medium-low heat. Add garlic, 3/4 teaspoon lemon peel, and crushed red pepper. Sauté until garlic is soft, about 3 minutes. Add wine, increase heat, and boil until mixture is reduced to 1 cup, about 6 minutes. Remove sauce from heat; mix in lemon juice, anchovies, 1 tablespoon parsley, and remaining 3/4 teaspoon lemon peel. Season with coarse salt. DO AHEAD Can be made 2 hours ahead. Let stand at room temperature. Rewarm before using. Prepare barbecue (high heat). Arrange clams on grill rack. Cover grill. Cook clams 5 minutes. Uncover and cook without turning until clams open. Transfer to rimmed baking sheet as they open, retaining juices in shells, about 5 minutes longer (discard any clams that do not open). Meanwhile, cook pasta in large pot of boiling salted water until just tender but still firm to bite. Drain pasta and divide among 4 large shallow bowls. Arrange 12 clams in shells with juices on pasta in each bowl. Spoon sauce over. Garnish with lemon wedges and sprinkle with 1 tablespoon parsley.