Crossword Genius

Horse is straddled by female — top rider (10)

Ross

I believe the answer is:

showjumper

I'm a little stuck... Click here to teach me more about this clue!

'rider' is the definition.
(showjumper is a type of horse rider)

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for showjumper that I've seen before include "equestrian" , "horse" , "one tackling obstacles in due course" , "Sportsman" , "Sportsperson penalised for a refusal" .)

I've seen this clue in The Times.
Want a hint initially instead of a full solution? Install my app