Preheat oven to 350°. Grease and flour a 10-in. fluted tube pan; sprinkle pecans onto bottom of pan.
In a large bowl, beat pumpkin, sugar, oil, eggs and water until well blended. In another bowl, whisk cake mix and spices; gradually beat into pumpkin mixture. Transfer to prepared pan.
Bake 55-60 minutes or until a toothpick inserted in center comes out clean. Cool in pan 10 minutes before removing to a wire rack.
In a small saucepan, combine sugar, butter, cinnamon and cloves; cook and stir over medium heat until butter is melted. Remove from heat. Stir in rum; cook and stir 2-3 minutes longer or until sugar is dissolved.
Gradually brush glaze onto warm cake, about 1/4 cup at a time, allowing glaze to soak into cake before adding more. Cool completely.
Editor’s Note: To remove cakes easily, use solid shortening to grease plain and fluted tube pans.