Complex sentence: After a creditor arrives, Angela collects a night's receipt from theatre owner Pierce, she risks all on a poker game with gunslinger Clint Mabry--puts herself up as collateral--and loses.
Split into simpler sentences: After a creditor arrives, Angela collects a night's receipt from a man named, Pierce, the theater owner. She risks it all in a poker game with gunslinger Clint Mabry, puts herself up as collateral, and loses.