When ale's introduced, Norfolk community stray into intemperance (11)

I believe the answer is:

dissipation

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'intemperance' is the definition.
(I know that dissipation is a type of intemperance)

'when ale's introduced norfolk community stray' is the wordplay.
I cannot really see how this works, but
'when' could be 'on' (I've seen this in other clues) and 'on' is present in the answer.
This may be the basis of the clue (or it may be nonsense).

'into' acts as a link.

Can you help me to learn more?

(Another definition for dissipation that I've seen is " Overindulgent living".)

I've seen this clue in The Telegraph.

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