Kinda seems like it based on this story from OrangeandWhite.com
Clemson has dropped 2013 linebacker Isaac McDonald from its recruiting board after the rising senior at Champagnat Catholic High in Hialeah, Fla. attended camps at Mississippi and Alabama, according to multiple sources.Each school handles commits visiting other schools differently, or at least the way they handle it publicly. Privately no coach wants to see their commitments visiting other schools.
McDonald, who committed to the Tigers after making his first visit to campus in early March, is the second player to have recruiting ties with Clemson severed after taking visits to other schools. North Carolina offensive lineman R.J. Prince committed to Clemson last fall, but then parted ways with Clemson after he visited Chapel Hill for UNC’s basketball game against Duke. He subsequently committed to UNC.
Florida LB Isaac McDonald dropped from Clemson's 2013 commitment list