Like the busy life of a show jumper? (8)

I believe the answer is:

eventful

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

'busy life of a show jumper?' is the definition.
'eventful' can be an answer for 'busy' (I've seen this before). I'm not certain of the 'life of a show jumper?' bit.

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for eventful that I've seen before include "Lively and exciting" , "Packed with incident, lively" , "Consequential" , "Busy, exciting (period)" , "Full of incidents, momentous" .)

I've seen this clue in the Evening Standard.

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