“Stand clear of the closing doors please.”
You're getting into a subway car. The doors are going to close in a minute, so the train driver announces this.
Stand clear of the closing doors please.
To "stand clear of" something means to stand away from it. You "stand clear of" things like:
- the scene of an emergency
- falling rocks
- large machinery
- a crime scene
In a situation in which you want people to move away from somewhere quickly, you can yell:
Or if you want to say what people should stay away from, include "of ___":
Everybody stand clear of the window.
This is a standard announcement that the train conductor makes on subways and other trains, right before the doors close. It's a warning that people should move away from the door.