I'm old-fashioned; no getting away from it (7)

I believe the answer is:

impasse

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'no getting away from it' is the definition.
I can't judge whether this defines the answer.

'i'm old-fashioned' is the wordplay.
'old-fashioned' becomes 'passe' (synonyms).
'im'+'passe'='IMPASSE'

Can you help me to learn more?

(Other definitions for impasse that I've seen before include "deadlock results" , "'Deadlock, stalemate (7)'" , "Stalemate situation" , "failure to progress" , "Maybe gridlock" .)

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

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