My prefix will shut you down,
my suffix a common noun.
My infix desirable to fit in a gown,
I am what you might find in a ghost town.
What am I?
I know there's already an accepted answer. I'd like to point out that another is possible that (to my mind) works almost exactly equally well.
and its parts are
NO (same as for NOTHING), BOD (instead of THIN; a little too slangy for my taste but is indeed a desirable thing to fit into a gown), BODY (a common noun, about as much so as THING)
and of course
a ghost town contains NOBODY much more literally than it contains NOTHING (it presumably still has buildings, for instance; what makes it a ghost town is precisely the absence of (living) bodies.