well edited vs well-edited

[AntoineOMEGA]

When I wrote a review I got marked down because I used well edited instead of well-edited. In the guidlines it is written well edited, so is well edited correct or incorrect and why?

[CatInTheHat]

Depends on the overall sentence structure.

[unamilagra]

Compound adverbs should be hyphenated if they are followed by the noun. So it would be:

This is a well-edited book.

Or:

This book is well edited.

[AntoineOMEGA]

This is what I put. "This book was exceptionally well edited"
Is this right?

[CatInTheHat]

This is what I put. "This book was exceptionally well edited"
Is this right?

I believe you are correct. Note that if you choose to request a recheck though, you, as the reviewer are required to provide evidence as to "why" you are correct and the editor was incorrect. You can't just say, "You're wrong." Find a reputable website with the grammar rule & submit that with the recheck request.

[Aditi Sapate]

I'll try to explain with the help of an example.
The book was well edited.
It was a well-edited book.
See the difference? In the second sentence it is a compound adjective. That is why there is a hyphen present.