Answer:

horseman

Answer	Crossword Clue
HORSEMAN	Picador, e.g.
HORSEMAN	Equestrian
HORSEMAN	Cavalier

HORSEMAN	Cavalry member
HORSEMAN	Skilled rider
HORSEMAN	One of a famous N. D. backfield.
HORSEMAN	Paul Revere, for instance.
HORSEMAN	Apocalyptic rider.
HORSEMAN	Polo player.
HORSEMAN	Central Park exerciser.
HORSEMAN	One of a famous four.

HORSEMAN	Irving's "headless" one
HORSEMAN	Rotten Row figure
HORSEMAN	Quartet member
HORSEMAN	Sleepy Hollow's was headless
HORSEMAN	Sleepy Hollow's headless villain
HORSEMAN	Sleepy Hollow's headless character