The most common and most likely answer to this crossword clue is the 8 letter word CHOPPERS
I've seen this crossword clue in The Times
C
H
O
P
P
E
R
S
Buddy explains!
The straight part
We know that "teeth" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case teeth = choppers.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 CHOPPERS mean?
CHOPPERS noun- A tool for chopping wood; an axe/ax.
- A knife for chopping food.
- A crude tool with an irregular cutting edge formed by removing flakes from one side of a stone.
- A thick mitten, usually with yellow leather on the outside.
- The penis.
- A type of road motorcycle, especially as used by biker/bikie gangs.
- An assault rifle, especially a fully-automatic one (e.g. an AK-47).
- Any of various electronic switches used to interrupt one signal under the control of another.
- The bluefish (Pomatomus saltatrix).
- A helicopter.