I've created an Inkscape Extension which will destructively clip paths. In other words, a path can be used to clip other paths, like Object|Clip|Set, but the clipped paths are actually modified; they are cut up and clipped segments are discarded. Some export formats (eg DXF) don't honour Inkscape's "soft" clipping.
See clipped.png, it shows the rectangular blue path clipping the tiled "dovetail" red path. The red path has been modified.
The files can be downloaded from GitHub: https://github.com/funnypolynomial/DestructiveClip (choose Download ZIP)