Cook half & half and vanilla bean in 1-quart saucepan over medium heat until mixture just comes to a boil (3 to 5 minutes). Remove from heat; remove vanilla bean.
Meanwhile, stir together 1/3 cup sugar and egg yolks in small bowl with wire whisk until light and lemon-colored. Gradually whisk hot half & half into beaten egg yolk mixture; return mixture to saucepan. Cook over medium heat, stirring constantly, until mixture reaches 160°F. and is thick enough to coat back of metal spoon (2 to 3 minutes). Cover; refrigerate at least 1 hour.
Combine 1/4 cup sugar, wine, cloves, cinnamon stick and lemon juice in 10-inch skillet. Cook over medium heat until sugar is dissolved (3 to 4 minutes). Place flat-side of pear halves on cutting board; make 3 to 4 lengthwise cuts in each pear half, starting about 1/2 inch from stem and cutting to bottom. Place pears in wine mixture; spoon wine mixture over pears to prevent browning. Cook over medium heat until pears are fork tender (8 to 10 minutes).
To serve, spoon about 3 tablespoons creme sauce onto each of 4 individual serving dishes; place pear halves in sauce. Garnish with raspberries, if desired.