The most common and most likely answer to this crossword clue is the 6 letter word TANGLE
I've seen this crossword clue in The Daily Telegraph
T
A
N
G
L
E
More clues leading to the result TANGLE
- Knot tied originally on slant
- Twist Nikolai Gogol originally employed in literary work
- Story about no good muddle
- Complication no good in story
- Ravel, last of wet fish
- The Spanish fly around conflict
- Contend with an involved situation
- Jumble, half of it dumped by viewpoint
- Knot tied at the top corner
- Snarl, seeing no good in story
Buddy explains!

The straight part
We know that "Snarl" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case snarl = tangle.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 TANGLE mean?
TANGLE noun- A tangled twisted mass.
- A complicated or confused state or condition.
- An argument, conflict, dispute, or fight.
- A region of the projection of a knot such that the knot crosses its perimeter exactly four times.
- A form of art which consists of sections filled with repetitive patterns.
- To become mixed together or intertwined
- To enter into an argument, conflict, dispute, or fight
- To mix together or intertwine
- To catch and hold; to ensnare.
- Any large type of seaweed, especially a species of Laminaria.
- (in the plural) An instrument consisting essentially of an iron bar to which are attached swabs, or bundles of frayed rope, or other similar substances, used to capture starfishes, sea urchins, and other similar creatures living at the bottom of the sea.
- Any long hanging thing, even a lanky person.