Elaborated process of cropping:

Original screen shot-

You click on the clip, press image.

This post is what I've learnt about cropping. We searched how to crop on Final Cut Pron on YouTube and pasted the video on our group post. Here, I'm going to explain how to crop.

Press image plus wire frame and turn it on.

You grab the corner of the clip.

You then move the courser along.

Finally you then move it, so you can scale it to whatever size you want.