CORAL GABLES, Fla. — Nijel Pack usually doesn’t need warmup time to ignite. After a two-game absence with a lower extremity injury, the University of Miami’s star junior guard was active at both ends of the floor from the game’s first possessions on Wednesday night. And then in the second half Pack went off for 20 of his 25 points to spark the Hurricanes’ 91-82 comeback win over No. 16 Clemson at the Watsco Center. The Hurricanes (11-2, 2-0 Atlantic Coast Conference) won their fourth consecutive game and started the 2024 portion of their season on a high note with what was also their fourth co…