Is there a way to partially rotate a video in Imovie?

I need to rotate a movie clip by about 10 degrees to make the horizon level in a video. I have read that this used to be able to be done using MPEG streamclip http://www.squared5.com/svideo/mpeg-streamclip-mac.html when exporting a clip, but that program is 32-bit and isn't compatible with Mojave.

I there another way anyone can suggest? Ideally a free program since it's an amateur video but I would consider paying for a program if it wasn't too expensive and worked easily enough.

Thanks!