Tennis star stoked by Queens? (7)

I believe the answer is:

federer

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'queens?' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'tennis star stoked by' is the wordplay.
'tennis star' becomes 'erer' (I can't justify this - if you can you should give a lot more credence to this answer).
'stoked' becomes 'fed' (I've seen this in another clue).
'by' says to put letters next to each other.
'erer' put after 'fed' is 'FEDERER'.

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

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