Argument about city one's to visit, causing anxiety (9)

'argument about' is the definition.
I can't judge whether this defines the answer.

'city one's to visit causing anxiety' is the wordplay.
I cannot quite see how this works, but
'one's' could be 'is' (Roman numeral) and 'is' is found in the answer.
'city' could be 'rome' (Rome is an example) and 'rome' is present in the leftover letters.
This explanation may well be incorrect...

Can you help me to learn more?