Perhaps spin for a bit, and impress greatly? (4,4)

I believe the answer is:

bowl over

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'impress greatly?' is the definition.
'bowl over' can be an answer for 'impress' (I've seen this before). I am not certain of the 'greatly?' bit.

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for bowl over that I've seen before include "really impress" , "Overwhelm with surprise or emotion - at cricket?" , "Greatly impress" , "wow" , "Overwhelm or surprise, as cricket thrower may" .)

I've seen this clue in The Telegraph.

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