How do you make clips on the ps4?

So people I wanted to record a clip a kill in Fortnite looked really nice but I do not know if that works or how so that I can rewind the clip so to speak

So I've already done the kill but want to clip it like?

You can click on the share button and then save on… Then you are automatically saved the last 30 minutes in the recording gallery, where you can then edit it