If you have clips but they dont appear this is down to your xbox privacy settings which can easily be changed on xbox.com.
Simply visit this page - https://account.xbox.com/Settings and scroll down to where it says See your game clips (Xbox One Only). This wants to be set to Everybody as shown below.
Once you have done that search your Gamertag in the top right corner and enjoy your clips!
If that does not work, tweet us at @XboxOneClips.