The most common and most likely answer to this crossword clue is the 6 letter word CUBANS
I've seen this crossword clue in The Times
C
U
B
A
N
S
More clues leading to the result CUBANS
- Islanders caught by embargo America maintains
- Their neighbours about to stop entering America
- Copper bars – they might be from Havana
- Young reporters covering article for islanders
- Copper places an embargo on islanders
- One among Chicago team’s Caribbean natives
- Island stock answer provides support for novice
- Article penned by young reporters Marti and Batista
Buddy explains!
The straight part
We know that "Their neighbours" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case their neighbours = cubans.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.