Advise about penalty at the top of one's game (2,4,4)
I believe the answer is:
in fine form
'the top of one's game' is the definition.
I know nothing about this answer so I cannot tell whether this works.
'advise about penalty' is the wordplay.
'advise' becomes 'inform' (I've seen this before).
'about' is an insertion indicator.
'penalty' becomes 'fine' (a financial penalty).
'inform' enclosing 'fine' is 'IN FINE FORM'.
'at' is the link.
Can you help me to learn more?
(Another definition for in fine form that I've seen is " Performing really well".)