Finally resolve to place pot al fresco (4,3)

I believe the answer is:

hash out

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'finally resolve to' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'pot al fresco' is the wordplay.
'pot' becomes 'hash' (hash is a kind of pot).
'al fresco' becomes 'out' (I can't justify this - if you can you should believe this answer much more).
'hash'+'out'='HASH OUT'

'place' is the link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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