Answer: mudder

AnswerCrossword Clue
MUDDERHorse that performs well in the slop
MUDDERWet track specialist.
MUDDERFast horse on a wet track.
MUDDERWet-track runner
MUDDERHorse that does well in the slop
MUDDERGood wet-ground racehorse
MUDDERHorse that does well in slop
muddera racehorse that runs well on muddy tracks
mudderathlete who performs well in muddy conditions
mudderracehorse able to perform well on a wet, muddy track