The most common and most likely answer to this crossword clue is the 8 letter word SERRATED
I've seen this crossword clue in The Sunday Telegraph
S
E
R
R
A
T
E
D
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 SERRATED mean?
SERRATED verb- To make serrate.
- To cut or divide in a jagged way.
- Notched or cut like a saw.
- Having a row of sharp or tooth-like projections.