The ornamental design for a clip, as shown and described.
FIG. 1 is a front view of a clip showing my new design;
FIG. 2 is a back view thereof;
FIG. 3 is a right-side view thereof;
FIG. 4 is a left-side view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof; and,
FIG. 7 is a perspective view thereof.
The application relates to the design of a clip that is used in the construction of fences, to join a rail to a picket in a fence and allow for the rotation of the rail and picket.