The most common and most likely answer to this crossword clue is the 8 letter word ARTESIAN
I've seen this crossword clue in The Daily Telegraph
A
R
T
E
S
I
A
N
More clues leading to the result ARTESIAN
- It pushes up water rates in a reorganisation
- Isn’t area unrecognisable as well?
- Area isn’t developed well?
- Kind of well-worn satire in article
- The area isn’t developed as well
- Following Descartes, first to go off as well
- Area isn’t for development as well
- Follower of rational philosophy, losing head, is ... kind of ... well ...
Buddy explains!

The straight part
We know that "well" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case well = artesian.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 ARTESIAN mean?
ARTESIAN adjective- (of a water supply) Rising to the surface under its own hydrostatic pressure.