The most common and most likely answer to this crossword clue is the 4 letter word OAHU
I've seen this crossword clue in The Guardian
O
A
H
U
More clues leading to the result OAHU
- Part of Samoa, hugely popular Pacific location
- Island off Australia has useless leaders
- I see you on old Hawaiian island
- Central part of tour takes in a hot island
- Island occupants of Soay and Rhum
- Adult education centre covers heartless aftermath surrounding Pearl Harbour
- Road shelled on the outskirts of Honolulu’s island
- Whoa! Hurricane engulfs Hawaiian island
- Ostentatious Adolf Hitler's uniform initially seen in island
- Lo, a human hides an island
Buddy explains!
The straight part
We know that "Hawaiian island" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case hawaiian island = oahu.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.