The ornamental design for a desktopclockradio, as shown and described.
FIG. 1 is a front perspective view of a desktop clock radio according to my new design;
FIG. 2 is a front view of the design of FIG. 1, illustrating a clock-viewing window in an upper portion;
FIG. 3 is a rear view of the design of FIG. 1;
FIG. 4 is a left side view of the design of FIG. 1;
FIG. 5 is a right side view of the design of FIG. 1;
FIG. 6 is a top view of the design of FIG. 1; and,
FIG. 7 is a bottom view of the design of FIG. 1.
The dash-dash broken lines, including input jacks, branding, feet, and rear surface, illustrate environmental structure that form no part of the claimed design, and are intended to illustrate optional environmental features that can be omitted, with the underlying surface being continuous and uninterrupted.