The most common and most likely answer to this crossword clue is the 5 letter word IMARI
I
M
A
R
I
More clues leading to the result IMARI
- Japanese export, I damage half of it
- China: a little souvenir, a miniature turned up
- Porcelain one discovered by island wreck
- Porcelain style? Two with internal damage
- Oriental porcelain – the author’s given something similar? No thanks
- In belfry tiff do some clangers out of turn
- Porcelain from Hiroshima, right?
- Fine pottery I presented to amir nervously
- Porcelain daffodilsdelivered on St David’s Day
- Porcelain found in Hiroshima river
Buddy explains!

The straight part
We know that "Japanese export" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case japanese export = imari.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.
What does IMARI mean?
IMARI noun- Japanese porcelain wares (made in the town of Arita and exported from the port of Imari, particularly around the 17th century).