Fancy bike-rider or psychologist perhaps (5-7)

I believe the answer is:

trick-cyclist

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

'psychologist perhaps' is the definition.
I can't judge whether this definition defines the answer.

'fancy bike-rider' is the wordplay.
'fancy bike' becomes 'trick' (I can't justify this - if you can you should give a lot more credence to this answer).
'rider' becomes 'cyclist' (cyclist is a kind of rider).
'trick'+'cyclist'='TRICK-CYCLIST'

'or' is the link.

Can you help me to learn more?

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

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