Before his dismissal from the Penn State men's basketball program, Clary averaged 16.7 points per game.
Williams will make her third head coaching stop after previous stints at Georgetown and Auburn.
The match is set for 7 p.m. on Wednesday, April 9, at Rec Hall.
Jekot became the first Lady Lion transfer to commit to a new program.
The Nittany Lions started off conference play with two straight losses.
Three former players made the NCAA Tournament with their new programs.