The most common and most likely answer to this crossword clue is the 7 letter word ROCKALL
I've seen this crossword clue in The Guardian
R
O
C
K
A
L
L
More clues leading to the result ROCKALL
- Upset everyone in island
- The speck of land to amaze the world
- Shipping area, which is proverbially steady on everything
- Astonish everyone in a tiny remote island
- Music from start to finish for small island
- Mountainous hazard fellow ignored in tiny outpost
- Island area to shake the world?
- Island venue for Bill ‘Aley fans?
- Swing over the whole of shipping area
- Stun completely somewhere between Shannon and Malin
Buddy explains!
The straight part
We know that "Shipping area" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case shipping area = rockall.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.