Foreign instantiations made by Lisp -- for example in a Foreign Language Interface program -- are made in static memory. The Lisp representations of these alien objects are not, however. Therefore
applied to an alien returns
even though the alien instance itself is really allocated in static memory. To establish this, you can check the pointer to the alien instance within its Lisp representation (a structure).
LispWorks User Guide and Reference Manual - 21 Dec 2011