/usr/ is in libclutter-gtk-1.0-dev 1.6.6-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/gir-1.0/
/usr/share/gir-1.0/GtkClutter-1.0.gir
/usr/share/doc/
/usr/share/doc/libclutter-gtk-1.0-dev/
/usr/share/doc/libclutter-gtk-1.0-dev/examples/
/usr/share/doc/libclutter-gtk-1.0-dev/examples/redhand.png
/usr/share/doc/libclutter-gtk-1.0-dev/examples/gtk-clutter-test.c
/usr/share/doc/libclutter-gtk-1.0-dev/examples/gtk-clutter-window-test.c
/usr/share/doc/libclutter-gtk-1.0-dev/examples/gtk-clutter-multistage.c
/usr/share/doc/libclutter-gtk-1.0-dev/examples/gtk-clutter-test-actor.c
/usr/share/doc/libclutter-gtk-1.0-dev/examples/gtk-clutter-events.c
/usr/share/doc/libclutter-gtk-1.0-dev/copyright
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/clutter-gtk-1.0.pc
/usr/include/
/usr/include/clutter-gtk-1.0/
/usr/include/clutter-gtk-1.0/clutter-gtk/
/usr/include/clutter-gtk-1.0/clutter-gtk/gtk-clutter-actor.h
/usr/include/clutter-gtk-1.0/clutter-gtk/gtk-clutter-embed.h
/usr/include/clutter-gtk-1.0/clutter-gtk/gtk-clutter-texture.h
/usr/include/clutter-gtk-1.0/clutter-gtk/gtk-clutter-window.h
/usr/include/clutter-gtk-1.0/clutter-gtk/gtk-clutter-util.h
/usr/include/clutter-gtk-1.0/clutter-gtk/gtk-clutter-version.h
/usr/include/clutter-gtk-1.0/clutter-gtk/clutter-gtk.h
/usr/share/doc/libclutter-gtk-1.0-dev/README
/usr/share/doc/libclutter-gtk-1.0-dev/NEWS.gz
/usr/share/doc/libclutter-gtk-1.0-dev/changelog.Debian.gz
/usr/lib/x86_64-linux-gnu/libclutter-gtk-1.0.so