Twisted aisle is in region of Europe (7)

I believe the answer is:

silesia

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'region of europe' is the definition.
The definition suggests a singular noun which matches the answer.

'twisted aisle is' is the wordplay.
'twisted' indicates an anagram.
'aisle'+'is'='aisleis'
'aisleis' is an anagram of 'SILESIA'.

'in' acts as a link.

Can you help me to learn more?

(Other definitions for silesia that I've seen before include "part of Europe" , "Region of central Europe" , "Polish area" , "Central European area" , "European region" .)

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

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