Here’s the experimental plug-in
ESP-clipfix.ny (5.79 KB)
Note that it will only work with mono tracks.
I was very new to Nyquist when I wrote this, so there’s no guarantees about the code being correct - use at your own risk 
If your recording is stereo you can split the track (click on the track name and select “Split Stereo Track” from the drop down menu), apply the effect, then click on the name of the upper track and select “Make Stereo Track” to join the tracks back together.