The ornamental design for a heel for shoe, as shown and described.
FIG. 1 is a perspective view of a heel for shoe showing our new design;
FIG. 2 is a left side elevation view of the heel for shoe shown in FIG. 1;
FIG. 3 is a right side elevation view of the heel for shoe shown in FIG. 1;
FIG. 4 is a top plan view of the heel for shoe shown in FIG. 1; and,
FIG. 5 is a back elevation view of the heel for shoe shown in FIG. 1.
The broken lines showing a shoe are environment and form no part of the claimed design. The broken lines illustrating portions of the heel for shoe form no part of the claimed design.