The most common and most likely answer to this crossword clue is the 8 letter word REISSUES
I've seen this crossword clue in Financial Times
R
E
I
S
S
U
E
S
Buddy explains!

The straight part
We know that "New editions" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case new editions = reissues.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 REISSUES mean?
REISSUES noun- Something that has issued, or been issued again.
- A second or subsequent printing of postage stamps from old plates.
- To issue again.
- To reprint a series of postage stamps from old plates.
- In patent law: to permit a patent with ministerial errors to be corrected and enforced for the remainder of the original term of the patent.