I love Ms Kournikova investing in Greek city (8)

'greek city' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'i love ms kournikova investing in' is the wordplay.
I cannot really understand how this works, but
'i' could be 'a' and 'a' is located in the answer.
'love' could be 'o' (In tennis, 'love' means 'zero') and 'o' is present in the answer.
'in' is present in the answer.
The remaining letters 'nina' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?