Protective cover for a camera Crossword Clue

 The answer to the crossword clue "protective cover for a camera" is LENS CAP.

A lens cap is a small, usually plastic or metal, cap that covers the lens of a camera to protect it from dust, dirt, and scratches. Lens caps typically have a small hole in the center so that light can reach the sensor.

Lens caps are usually included with the purchase of a camera, but they can also be purchased separately. There are many different types of lens caps available, including screw-on caps, snap-on caps, and magnetic caps.

It is important to use a lens cap whenever your camera is not in use to protect the lens from damage.