The ornamental design for a closure, as shown and described.
FIG. 1 is an isometric view taken from the top front and right side of a closure in the closed condition;
FIG. 2 is another isometric view thereof taken from the top rear and left side;
FIG. 3 is a front elevational 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 rear elevational view thereof; and,
FIG. 6 is a top plan view thereof.
The undisclosed bottom view is unornamented, is not visible to the consumer when the closure is installed on a container (not shown), and forms no part of the claimed ornamental design.
In the drawings, the broken lines depict environmental subject matter only and form no part the claimed design.