The most common and most likely answer to this crossword clue is the 5 letter word ARUBA
I've seen this crossword clue in Financial Times
A
R
U
B
A
More clues leading to the result ARUBA
- A problem facing area in Caribbean island
- Somewhere in W Indies, Antigua evacuated to make room for Polish
- Caribbean island where a dance lacks heart
- Caribbean island where the visitors go Dutch?
- Rescue service overcomes obstacle to Caribbean island
- Adult massage area in Caribbean location
- A problem to reach Australian island
- Massage in a top-grade Caribbean place
- Island leads in active rebellion under Bush administration
- A massage on a Caribbean island
Buddy explains!

The straight part
We know that "Caribbean island where the visitors go Dutch" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case caribbean island where the visitors go dutch = aruba.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.