Complex sentence: Wiest studied theatre at the University of Maryland, leaving after her third term in order to tour with a Shakespearean troupe, eventually appearing in a supporting role in the New York Shakespeare Festival production "Ashes".
Split into simpler sentences: Wiest studied theatre at the University of Maryland, leaving after her third term to tour with a Shakespearean troupe. Later, she had a supporting role in a New York Shakespeare Festival production of "Ashes".