Country under control of another and occupied by settlers (6)
I believe the answer is:
colony
'country under control of another and occupied by settlers' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for colony that I've seen before include "New settlement abroad" , "Dependent settlement away from the homeland" , "Hive" , "sort of territory" , "Group of organisms of the same type living together" .)