Against also holding Australian in Paris, a city in Chile? (10)

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

'holding australian in paris a city in chile?' is the wordplay.
'holding' means one lot of letters goes inside another.
'australian' becomes 'A' (common abbreviation).
'in' is an insertion indicator.
'a city in chile?' becomes 'valo' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'a' put within 'paris' is 'parais'.
'parais' placed within 'valo' is 'VALPARAISO'.

'also' is the link.

Can you help me to learn more?