I claim the ornamental design for an accessory for a clothesline for drying clothes, as shown.
FIG. 1 is a perspective view of an accessory for a clothesline for drying clothes of my new design;
FIG. 2 is a perspective view of one part thereof shown separately from the clothesline and second part for ease of illustration and complete disclosure; and,
FIG. 3 is a perspective view of a second part thereof shown separately from the clothesline and first part for ease of illustration and complete disclosure capable of interacting with the first part thereof to form the entire accessory as shown in FIG. 1.
The broken lines shown in the drawings are included for the purpose of illustrating environmental structure and form no part of the claimed design.