linking mac framework to qt creator

I assume the project itself is using Qt i.e. it is using .pro files to configure things like include paths and library/framework paths? If so then you just need to update the relevant .pro file to add the framework.

See the qmake docs for more detail. The gist of it is to add

QMAKE_LFLAGS += -F/path/to/framework/directory/

and

LIBS += -framework TheFramework