Answer: seattleslew

AnswerCrossword Clue
SEATTLESLEW

Steed that won the 1977 Triple Crown

SEATTLESLEW

Swale's sire

SEATTLESLEW

Mariners' lot?

SEATTLESLEW
Triple Crown winner: 1977
SEATTLESLEW
Winner before Affirmed
SEATTLESLEWBet by scads of people in Washington: 1977
SEATTLESLEWSWELL ESTATE!: 1977
SEATTLESLEWHorse of the Year, 1977
SEATTLESLEWTrack star of 1977
SEATTLESLEW[1977]
SEATTLESLEWRenowned racehorse
SEATTLESLEW1977 Triple Crown winner
SEATTLESLEWTriple Crown winner of 1977