Pundit to pause wanting answer – ultimately can these tennis balls inspire grass court specialists? (6,9)

'pause wanting answer ultimately can these tennis balls inspire grass court specialists?' is the definition.
I know nothing about this answer so I can't judge whether this works.

'pundit' is the wordplay.
I cannot really understand how this works, but
'pundit' could be 'expert' (a pundit is an expert on a particular topic) and 'expert' is located in the answer.
The remaining letters 'witnesses' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

'to' acts as a link.

Can you help me to learn more?