Locate nuns settled in Cornish town (10)

I believe the answer is:

launceston

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'cornish town' is the definition.
The definition suggests a singular noun which matches the answer.

'locate nuns settled' is the wordplay.
'settled' is an anagram indicator.
'locate'+'nuns'='locatenuns'
'locatenuns' with letters rearranged gives 'LAUNCESTON'.

'in' is the link.

Can you help me to learn more?

(Other definitions for launceston that I've seen before include "Capital" , "Town in Cornwall" .)

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