CLEMSON, S.C. – Trevor Lawrence threw for three touchdowns and rushed for another as No. 1 Clemson proved once more who’s boss in the Atlantic Coast Conference with a 42-17 beatdown of seventh-ranked Miami on Saturday night.Travis Etienne rushed for 149 yards and two scores, including a 72-yard burst down the left sidelines as the Tigers opened 4-0 for a sixth straight season.This is was billed as an ACC showdown where the Hurricanes (3-1, 2-1 ACC) could prove the swagger had truly returned to “The U.”Instead, Miami's offense was suffocated by the Tigers (3-0 ACC) and held without an offensive touchdown until the fourth quarter.Hurricanes quarterback D'Eriq King came in alongside Lawrence as the ACC's dominant, dynamic playmakers.