clearing images that are bigger/wider than the canvas

[arifg]

here's the example. How to delete this image's areas that fell outside of the canvas? Is there an option for the marquee tool to include outside of the canvas when creating a selection?

[firstdefence]

Right Click on the image and select Rasterise and trim. 

As far as I am aware, the selection tool cannot select outside of the canvas boundaries.

[arifg]

1 hour ago, firstdefence said:

Right Click on the image and select Rasterise and trim. 

As far as I am aware, the selection tool cannot select outside of the canvas boundaries.

thank you very much