Answer: pirateflag

AnswerCrossword Clue
PIRATEFLAG"Treasure Island" standard
PIRATEFLAGJolly Roger
PIRATEFLAGThe Jolly Roger.
PIRATEFLAGJolly Roger.
PIRATEFLAGWinning pennant: 1979
PIRATEFLAGHostile takeover symbol
PIRATEFLAGBlackbeard flew one
PIRATEFLAGHook flew one