The most common and most likely answer to this crossword clue is the 10 letter word RE-EXPORTS
I've seen this crossword clue in The Guardian
R
E
-
E
X
P
O
R
T
S
More clues leading to the result RE-EXPORTS
Buddy explains!

The straight part
We know that "Stuff sent abroad again" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case stuff sent abroad again = re-exports.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 RE-EXPORTS mean?
RE-EXPORTS noun- Export of a (recently) imported good (often not or hardly reworked)
- To export again; to export something that has been imported