The most common and most likely answer to this crossword clue is the 9 letter word MID-POINT
I've seen this crossword clue in Financial Times
M
I
D
-
P
O
I
N
T
Buddy explains!
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 MID-POINT mean?
MID-POINT noun- A point equidistant between two extremes.
- A point which divides a line segment into two lines of equal length.