Country once known as British Honduras (6)
I believe the answer is:
belize
'country once known as british honduras' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for belize that I've seen before include "Commonwealth state" , "Central American country, formerly British Honduras" , "Central American state" , "Country formerly called British Honduras" , "Caribbean country" .)