The most common and most likely answer to this crossword clue is the 6 letter word SMOKED
I've seen this crossword clue in The Daily Telegraph
S
M
O
K
E
D
More clues leading to the result SMOKED
Buddy explains!

The straight part
We know that "cured" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case cured = smoked.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 SMOKED mean?
SMOKED adjective- Of food, preserved by treatment with smoke.
- Of glass, tinted.
- To inhale and exhale the smoke from a burning cigarette, cigar, pipe, etc.
- To inhale and exhale tobacco smoke.
- To give off smoke.
- To preserve or prepare (food) for consumption by treating with smoke.
- To dry or medicate by smoke.
- To fill or scent with smoke; hence, to fill with incense; to perfume.
- To make unclear or blurry.
- (chiefly as present participle) To perform (e.g. music) energetically or skillfully.
- To beat someone at something.
- To kill, especially with a gun.
- To thrash; to beat.
- To smell out; to hunt out; to find out; to detect.
- To ridicule to the face; to mock.
- To burn; to be kindled; to rage.
- To raise a dust or smoke by rapid motion.
- To suffer severely; to be punished.
- To punish (a person) for a minor offense by excessive physical exercise.
- To cover (a key blank) with soot or carbon to aid in seeing the marks made by impressioning.