The most common and most likely answer to this crossword clue is the 7 letter word CORNISH
I've seen this crossword clue in The Times
C
O
R
N
I
S
H
More clues leading to the result CORNISH
- Like a cereal plant, perhaps, from south-west England
- My name I keep quiet: it’s no longer spoken
- In one corner of England having little growth is hard
- My husband takes wrong turning from Newquay?
- Grain is given to husband from Penzance
- Like wheat from the West Country?
- To salt away is hard for some people in the UK
Buddy explains!

The straight part
We know that "it’s no longer spoken" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case it’s no longer spoken = cornish.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 CORNISH mean?
CORNISH noun- A horizontal architectural element of a building, projecting forward from the main walls, originally used as a means of directing rainwater away from the building's walls.
- A decorative element applied at the topmost part of the wall of a room, as with a crown molding.
- A decorative element at the topmost portion of certain pieces of furniture, as with a highboy.
- (mountaineering) An overhanging edge of snow on a ridge or the crest of a mountain and along the sides of gullies.
- One of several decorative rings around the barrel of a cannon; the next ring from the muzzle backwards.