Rogue enters region, not a place for amusement? (6)
I believe the answer is:
arcade
'not a place for amusement?' is the definition.
I can't tell whether this definition defines the answer.
'rogue enters region' is the wordplay.
'rogue' becomes 'cad' (I've seen this before).
'enters' is an insertion indicator.
'region' becomes 'are' (I can't explain this - if you can you should believe this answer much more).
'cad' inserted within 'are' is 'ARCADE'.
Can you help me to learn more?
(Other definitions for arcade that I've seen before include "Gallery" , "Shopping passage" , "Shops in row" , "Covered area or passage with shops" , "Covered passage with shops on both sides" .)