Replaced audio in Imovie and can't edit without deleting entire audio when I clip sections out

Put your cursor on the audio clip and, while pressing down, drag it to a lower audio well until you see the little attachment handle pull free of the video clip. Now see if you can remove the piece of video clip without deleting the entire audio.

-- Rich

Another way that you can do this is to put your video clip and audio clip into a newly created project. Then share out the project, that will result in a movie with the video and audio clips merged. Then drag the shared out movie into your iMovie project. Now you can cut the video wherever you want and the corresponding portion of the audio clip, that is embedded in the video, will also be cut.

-- Rich

That's correct. That's how it is supposed to work. You now need to make a split (Modify/Split Clip) in the audio clip and trim it to fit the video.

-- Rich

You are welcome. :)

-- Rich