Removing noise in Audition

I am editing a video in Premiere, I wanted to remove a noise from a clip by opening it in Audition. I was able to remove the noise but now I don't have a clue how to take the audio and link it back to the clip in Premiere. I guess what I am asking is how do I properly export(?) version of audio with the noise removed and put that version back in video in Premiere.

Thanks