The ornamental design for an applicator, as shown and described.
FIG. 1 is a front, perspective view of an applicator showing my new design;
FIG. 2 is a back, perspective view showing my new design;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a left-side view thereof;
FIG. 6 is a right-side view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The broken lines shown in the drawings are included for the purpose of illustrating environmental structure and form no part of the claimed design. In particular, in FIG. 8, the entire underside of the invention is disclaimed inside of the broken line directly inside the outer contour line. In all, there are five concentric broken line circles showing in FIG. 8; all of these are disclaimed as is the surface area within all five circles.