Equestrian competitor (10)

I believe the answer is:
showjumper
(Other definitions for showjumper that I've seen before include "Sportsman" , "Sportsperson penalised for a refusal" , "horse" , "equestrian" , "one using mount?" .)
I believe the answer is:
showjumper
(Other definitions for showjumper that I've seen before include "Sportsman" , "Sportsperson penalised for a refusal" , "horse" , "equestrian" , "one using mount?" .)