A clip for attaching the end of a grid tee to a wall angle. The clip, in various forms, is arranged to frictionally lock between the hem of the horizontal leg of the wall angle and the vertical leg. The clip, typically, has a pair of opposed open hems forming channels in which the flange of the tee end is received to join the tee to the clip. The clip can be elongated horizontally to accommodate movement of the grid during seismic activity. The clip can be used to trim the edges of a ceiling island and can be made to accommodate angular intersections of the grid with a wall or island edge.