How to remove high pitch noise when it's not a straight line in spectrogram?

Noise is 9000K-10000Khz. I usually use spectral edit multi tool when it’s a straight line.

Remove it in ( say ~10) chunks, like a steps. Tedious, but currently the only way to do it in Audacity.
[ IIRC they’re working on a lasso for spectral tools … Spectral Selection Ideas - Audacity Wiki ]