The most common and most likely answer to this crossword clue is the 6 letter word HARRIS
I've seen this crossword clue in Financial Times
H
A
R
R
I
S
More clues leading to the result HARRIS
- One of three men in a boat somewhere in the Outer Hebrides
- A bloke’s touring arranged by Lewis’s neighbour
- Turn up old form of address for Georgia writer
- He famously bombed southern part of an island
- Island man’s hiding a posh car
- Island that Mr Ford’s not on
- Island boatman
- One in a boat — gentleman given cheer standing up
Buddy explains!
The straight part
We know that "Island" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case island = harris.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.