Footballer, French, by an unknown stream in Parisian arbour we hear (5,11)

'arbour we hear' is the definition.
I know nothing about this answer so I can't tell whether this works.

'footballer french by an unknown stream in parisian' is the wordplay.
I cannot quite see how this works, but
'french' could be 'fr' (abbreviation) and 'fr' is located in the answer.
'an' could be 'a' and 'a' is located in the answer.
'unknown' could be 'z' (algebra) and 'z' is found in the answer.
'stream' could be 'beck' (northern English dialect term for 'stream') and 'beck' is found in the answer.
'in parisian' could be 'en' ('in' in French) and 'en' is found within the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?