Score hits (3,3,6)
I believe the answer is:
the top twenty
'hits' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.
'score' is the wordplay.
I cannot really understand how this works, but
'score' could be 'twenty' (synonyms) and 'twenty' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?