The most common and most likely answer to this crossword clue is the 6 letter word TONGUE
I've seen this crossword clue in The Daily Telegraph
T
O
N
G
U
E
More clues leading to the result TONGUE
- One part of body or another in which gun is deviously hidden
- Language employed by Sheraton guest
- Chinese society content to shun ukulele and mouth organ
- Maybe Spanish gunshot severing digit
- It’s not entirely lost on guest speaker
- Go with tune composed for organ
- Mouth organ?
- Language that’s evident in butcher’s?
- Wait on guests eating meat
- Stone lost by one visiting speaker
Buddy explains!

The straight part
We know that "language" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case language = tongue.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 TONGUE mean?
TONGUE noun- The flexible muscular organ in the mouth that is used to move food around, for tasting and that is moved into various positions to modify the flow of air from the lungs in order to produce different sounds in speech.
- This organ, as taken from animals used for food (especially cows).−
- (metonym) A language.
- Speakers of a language, collectively.
- Voice (the distinctive sound of a person's speech); accent (distinctive manner of pronouncing a language).
- Manner of speaking, often habitually.
- (metonym) A person speaking in a specified manner (most often plural).
- The power of articulate utterance; speech generally.
- Discourse; fluency of speech or expression.
- Discourse; fluency of speech or expression.
- Honourable discourse; eulogy.
- (often in the plural) Glossolalia.
- In a shoe, the flap of material that goes between the laces and the foot (so called because it resembles a tongue in the mouth).
- Any large or long physical protrusion on an automotive or machine part or any other part that fits into a long groove on another part.
- A projection, or slender appendage or fixture.
- A long, narrow strip of land, projecting from the mainland into a sea or lake.
- The pole of a vehicle; especially, the pole of an ox cart, to the end of which the oxen are yoked.
- The clapper of a bell.
- An individual point of flame from a fire.
- A small sole (type of fish).
- A short piece of rope spliced into the upper part of standing backstays, etc.; also, the upper main piece of a mast composed of several pieces.
- A reed.
- A division of formation; A layer or member of a formation that pinches out in one direction.
- On a wind instrument, to articulate a note by starting the air with a tap of the tongue, as though by speaking a 'd' or 't' sound (alveolar plosive).
- To manipulate with the tongue, as in kissing or oral sex.
- To protrude in relatively long, narrow sections.
- To join by means of a tongue and groove.
- To talk; to prate.
- To speak; to utter.
- To chide; to scold.