Street jockey, a steady courser (7)

I believe the answer is:

strider

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

'a steady courser' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'street jockey' is the wordplay.
'street' becomes 'st' (abbreviation).
'jockey' becomes 'rider' (I've seen this before).
'st'+'rider'='STRIDER'

Can you help me to learn more?

(Other definitions for strider that I've seen before include "One stepping out" , "Walker" .)

I've seen this clue in the Sydney Morning Herald.

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