Does anyone have any ideas?
Re-record, cut around it or live with it.
As you have discoved, that kind of noise covers a wide spectrum.
Think of things this way. You are video recording a kids soccer game. As you pan down the field following the action a person walks between you and the field blocking your view of the game momentarily.
When you get home and try to remove the person from the video, you discover once you remove the person, there is nothing left to fill the picture. The camera does not magically see behind people.
The same is true of audio, if two things share the same (or most) frequencies, if you remove the offending element, there is nothing left.