Complex sentence: A member of the New York glitterati, she is a club/bar/restaurant staple known for her unique fashion sense, who lives in a studio apartment in an Upper East Side brownstone.
Split into simpler sentences: A member of the New York glitterati, she is a club/bar/restaurant staple known for her unique fashion sense. Carrie lives in a one-room (studio) apartment in an Upper East Side brownstone.