The ornamental design for an edit icon for a portion of a computerdisplay, as shown and described.
FIG. 1 is a front view of an edit icon for a portion of a computer display;
FIG. 2 is a front view of a second embodiment thereof; and,
FIG. 3 is an enlarged front view of the embodiment shown in FIG. 1.
The broken line drawing of an undefined portion of a display screen in all
views is for illustrative purposes only and forms no part of the claimed
design.