The most common and most likely answer to this crossword clue is the 6 letter word COGGED
C
O
G
G
E
D
Buddy explains!
The straight part
We know that "having teeth" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case having teeth = cogged.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 COGGED mean?
COGGED verb- To furnish with a cog or cogs.
- To load (a die) so that it can be used to cheat.
- To cheat; to play or gamble fraudulently.
- To seduce, or draw away, by adulation, artifice, or falsehood; to wheedle; to cozen; to cheat.
- To obtrude or thrust in, by falsehood or deception; to palm off.