Crossword Clue:

person exploited by another dupe

AnswerCrossword Clue
THRALLPerson enslaved by another
INTRUSTHeld by one person for another.
CATSPAWPerson used by another to gain an end
OBLIGEEPerson to whom another is bound by contract
ALLONYMThe name of another person assumed by the author of a work.