Junior scout with an inhabitant of the Caribbean (5)
I believe the answer is:
cuban
'inhabitant of the caribbean' is the definition.
'cuban' can be an answer for 'caribbean' (I've seen this before). I'm not certain of the 'inhabitant of the' bit.
'junior scout with an' is the wordplay.
'junior scout' becomes 'cub' (I can't justify this - if you can you should give a lot more credence to this answer).
'with' means one lot of letters go next to another.
'cub'+'an'='CUBAN'
Can you help me to learn more?
(Other definitions for cuban that I've seen before include "One from Havana" , "from island republic" , "sort of heel" , "Caribbean" , "Relating to Castro's isle" .)