The ornamental design for safety drawer, as shown and described.
FIG. 1 is a front perspective view of a safety drawer in accordance with the new design in an open position;
FIG. 2 is a front perspective view thereof in a closed position;
FIG. 3 is a bottom perspective view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a right view thereof; and,
FIG. 7 is a left view thereof.
The broken lines shown in FIGS. 1-7 are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design.