The ornamental design for a cutter, as shown and described.
FIG. 1 is a front perspective view of a cutter showing our new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevation view thereof,
FIG. 4 is a left side elevation view thereof, wherein the right side elevation view is a mirror image of this view;
FIG. 5 is a rear elevation view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is an enlarged bottom, front perspective view thereof, depicted partially in cross-section; and,
FIG. 8 is an enlarged bottom, rear perspective view thereof.
The portions of the cutter illustrated by broken lines depict aspects of the article in which the design is embodied that form no part of the claimed design.