Reproduced with Inkscape 0.48+devel r13449 on OS X 10.7.5.
In tests with archived builds on OS X 10.7.5 reproduced with rev >= 12005 (earlier builds show arrows and sel cues, but don't update the visual bbox as expected) - i.e. the same revision seems to trigger the described issue with texts as clip-path as in (similar, but not the same) bug #1322940 (with clones as clip-path).
Reproduced with Inkscape 0.48+devel r13449 on OS X 10.7.5.
In tests with archived builds on OS X 10.7.5 reproduced with rev >= 12005 (earlier builds show arrows and sel cues, but don't update the visual bbox as expected) - i.e. the same revision seems to trigger the described issue with texts as clip-path as in (similar, but not the same) bug #1322940 (with clones as clip-path).