Locate nuns settled in Cornish town (10)
I believe the answer is:
launceston
'town' is the definition.
(I know that Launceston is a town)
'locate nuns settled' is the wordplay.
'settled' indicates anagramming the letters.
'locate'+'nuns'='locatenuns'
'locatenuns' is an anagram of 'LAUNCESTON'.
'in cornish' acts as a link.
This may not be right. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for launceston that I've seen before include "Capital" , "Town in Cornwall" .)