Tennis star hit head, belatedly getting affected (3,5)

I believe the answer is:

ash barty

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'tennis star hit head belatedly' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'affected' is the wordplay.
I cannot really see how this works, but
'affected' could be 'arty' (I've seen this in another clue) and 'arty' is located in the answer.
This may be the basis of the clue (or it may be nonsense).

'getting' acts as a link.

Can you help me to learn more?

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

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