Crossword Genius

Comparatively few are below par, of course (7)

Ross

I believe the answer is:

strokes

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

'comparatively few are below par' is the definition.
I can't tell whether this definition defines the answer.

'course' is the wordplay.
I cannot quite see how this works, but
'course' could be 's' and 's' is located in the answer.
The remaining letters 'trokes' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

'of' acts as a link.

Can you help me to learn more?

I've seen this clue in the Evening Standard.
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