A new feature is in the test phase for the Xbox app, which should make it much easier to share video clips from your games.
A new update to the Xbox mobile app will allow you to easily share your Xbox gameplay videos via a link. You will receive the link when you select the relevant video in your recordings library. There you can copy the link and send it to whoever you want. The recipient can then view the video without any registrations or permissions.
Furthermore, future trending videos from the community will be dragged into the spotlight so that you have a highlight reel of current videos available and can be entertained with them.
The whole thing is currently still in the test phase, when exactly the feature will be released via update is not yet known. Xbox is currently assuming that the feature will be deployed soon, depending on the feedback from the testing users.