Elitist can stuff new hobbies not ultimately allowable? (8)

I believe the answer is:

snobbish

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'stuff new hobbies not ultimately allowable?' is the definition.
I can't judge whether this definition defines the answer.

'elitist can' is the wordplay.
'elitist' becomes 'snob' (I've seen this before).
'can' becomes 'bish' (I can't explain this - if you can you should believe this answer much more).
'snob'+'bish'='SNOBBISH'

Can you help me to learn more?

(Other definitions for snobbish that I've seen before include "Condescending to inferiors" , "Stuck-up" , "Toffee-nosed" , "stuck up" , "Posh" .)

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

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