Check out

[GoesStation]

I clear the bill at the check-out in the supermarket.

You don't "clear the bill". In a place where a bill exists, you pay it. That doesn't happen at a supermarket though. It happens at a bar or a restaurant, or any place where you could be presented with a statement of expenses you have to settle.

You could say I pay the cashier at the check-out at the supermarket.

[andrewg927]

In the case of a bar or a restaurant, you could say "pick up the tab/check".

[Barb_D]

In the case of a bar or a restaurant, you could say "pick up the tab/check".

In my use, "picking up" the tab means you pay for other people. You are "treating them."

If it's just you/your family, you would not use "pick up."

[andrewg927]

That's right. I use it if I pay for other people.