Answer: blackie

AnswerCrossword Clue
BLACKIE

Boston ... (early film detective)

BLACKIE

Boston ... (Jack Boyle detective)

BLACKIE

"Boston ....": film hero

BLACKIE
Boston ..: '50s TV detective
BLACKIE
Eric Clapton's favorite guitar
BLACKIEBoston ....
BLACKIERing-necked duck.
BLACKIE"Hugo" dog who lost out to Uggie of "The Artist" for the Golden Collar Award for Best Dog in a Theatrical Film