I've got the example document below. There's a bit too little space for me between the last note in the last measure of the first line and the new clef.
I found a mailing list entry that showed how to put some extra space before the clef (the commented-out override) and that looks great -- except that it also moves the clef at the start of the next system. I tried a \tweak version, but my attempt has no effect at all.
Thanks,
Evan
\relative c {
\clef "bass"
\repeat unfold 10 {
g2. g4 |
}
\break
%\once \override Staff.Clef #'X-extent = #'(-2 . 2)
%\tweak Clef.X-extent #'(-2 . 2)
\clef "tenor"
\repeat unfold 7 {
g8 g g2.
}
}