To prepare shrimp, combine first 9 ingredients in a large bowl; stir well. Add shrimp, tossing well to coat. Cover and marinate in refrigerator 4 hours.
Preheat grill or grill pan.
Thread 3 shrimp onto each of 12 (6-inch) skewers. Place skewers on grill rack or grill pan coated with cooking spray; cook 3 minutes on each side or until shrimp are done.
To prepare salsa, combine clementine and remaining ingredients, stirring well. Serve salsa with shrimp.