The most common and most likely answer to this crossword clue is the 5 letter word TEETH
I've seen this crossword clue in The Times
T
E
E
T
H
More clues leading to the result TEETH
- Maybe canines in part of golf course on Thursday
- Saw things in Société Ethnologique?
- Force needing support on “towpath case”
- The mutant fed by alien power
- Ethel regularly chewed the things in her mouth
- Body parts goatee thankfully hides
- Probing vote, ethics watchdog needs these
- Canines maybe tailing enigmatic European travelling home, initially
- Tusk’s one with power
- Sufficient power to operate choppers
Buddy explains!

The straight part
We know that "things in her mouth" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case things in her mouth = teeth.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 TEETH mean?
TEETH noun- The ability to be enforced, or to be enforced to any useful effect.
- To grow teeth.
- To bite on something to relieve discomfort caused by growing teeth.
- A hard, calcareous structure present in the mouth of many vertebrate animals, generally used for eating.
- A sharp projection on the blade of a saw or similar implement.
- A projection on the edge of a gear that meshes with similar projections on adjacent gears, or on the circumference of a cog that engages with a chain.
- A projection or point in other parts of the body resembling the tooth of a vertebrate animal.
- A pointed projection from the margin of a leaf.
- The rough surface of some kinds of cel or other films that allows better adhesion of artwork.
- Liking, fondness (compare toothsome).
- An irreducible component of a comb that intersects the handle in exactly one point, that point being distinct from the unique point of intersection for any other tooth of the comb.