Australian can restrict hotel charges (6)
I believe the answer is:
tinnie
'australian' is the definition.
I know nothing about this answer so I cannot tell whether this works.
'restrict hotel charges' is the wordplay.
'restrict' becomes 'tie' (tying is a kind of restricting).
'hotel' becomes 'inn' (inn is a kind of hotel).
'charges' means one lot of letters goes inside another (charge can mean to charge into something).
'tie' enclosing 'inn' is 'TINNIE'.
'can' is the link.
Can you help me to learn more?
(Another definition for tinnie that I've seen is " Can of beer to 23dn".)