Hits the highest score (3,6)

I believe the answer is:

top twenty

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

'hits' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'highest score' is the wordplay.
'highest' becomes 'top' (at the top).
'score' becomes 'twenty' (synonyms).
'top'+'twenty'='TOP TWENTY'

'the' is the link.

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