The other solution is good, but if you want a quicker way to obtain this achievement then follow my guide.
First, add a team with your created superstar and then any other superstar of your choosing.
Now when there is a tag team title match, click RB and then substitute your team in the place of the number 1 contendors.
Now when you win, the achivement wont lock because you put yourself in the title match, however, once you have succesffuly defended the title the achivement will pop.
Hope this helps.