It's not possible to refuse tin at party (7)

I believe the answer is:

nocando

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'it's not possible' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'refuse tin at party' is the wordplay.
'refuse' becomes 'no'.
'tin' becomes 'can' (synonyms).
'at' means one lot of letters go next to another.
'party' becomes 'do' (do can informally mean a party).
'no'+'can'+'do'='NOCANDO'

'to' acts as a link.

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I've seen this clue in The Irish Times.

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