Summons requesting company to go to court? (6,3,6)

'summons requesting company' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'to go to court?' is the wordplay.
I cannot really understand how this works, but
'to' could be 'for' and 'for' is located in the answer.
'court?' could be 'tennis' (tennis court is a kind of court) and 'tennis' is present in the answer.
The remaining letters 'anyone' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...