The ornamental design for a closure, as shown and described.
FIG. 1 is a front isometric view of a closure with a hinge (shown in broken lines) connecting the closure body and closure lid, and FIG. 1 shows my new design with the lid in the closed position as the lid would be initially positioned with the closure body for installation of the closure on a container (not shown) for initial purchase by a consumer;
FIG. 2 is a rear isometric view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a right side elevational view thereof, the left side elevational view thereof being a mirror image;
FIG. 5 is a front elevational view thereof; and,
FIG. 6 is a rear elevational view thereof.
The hinge is illustrated in broken lines for the purposes of full disclosure in respect of one form that the hinge could have, but the hinge forms no part of the claimed ornamental design, and the broken lines represent unclaimed subject matter.