Small settlements belonging to the Prince of Denmark (7)
I believe the answer is:
hamlets
'small settlements' is the definition.
(I've seen this in another clue)
'belonging to the prince of denmark' is the wordplay.
'belonging' becomes 's' (I can't explain this - if you can you should believe this answer much more).
'to' means one lot of letters go next to another (I've seen this in other clues).
'the prince of denmark' becomes 'hamlet' (I've seen this before).
's' after 'hamlet' is 'HAMLETS'.
Can you help me to learn more?
(Another definition for hamlets that I've seen is " Very small villages".)