The most common and most likely answer to this crossword clue is the 7 letter word TRISECT
I've seen this crossword clue in The Sunday Telegraph
T
R
I
S
E
C
T
More clues leading to the result TRISECT
Buddy explains!
The straight part
We know that "cut into three parts" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case cut into three parts = trisect.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 TRISECT mean?
TRISECT verb- To cut into three pieces
- To divide a quantity, angle etc into three equal parts