1. Bring sugar, ginger, and 3 Tbsp. water to a boil in a small saucepan over high heat; cook 2 minutes, stirring occasionally. Remove from heat; discard ginger.
2. Pour syrup over clementine sections. Serve with gingersnaps.
Note: Clementines will not have juice to add to the syrup, but there will still be enough syrup at the end of Step 1 to coat fruit.