Such property can't be realised (6,6)

I believe the answer is:

frozen assets

I'm a little stuck... Click here to teach me more about this clue!

'can't be realised' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'such property' is the wordplay.
'such' becomes 'frozen' (I can't justify this - if you can you should believe this answer much more).
'property' becomes 'assets' (I've seen this before).
'frozen'+'assets'='FROZEN ASSETS'

Can you help me to learn more?

I've seen this clue in The Globe and Mail.

Want a hint initially instead of a full solution? Install my app