The most common and most likely answer to this crossword clue is the 6 letter word PAROLE
I've seen this crossword clue in Financial Times
P
A
R
O
L
E
More clues leading to the result PAROLE
- Conditional release of father to attend function
- Temporary release for good conduct of personal assistant’s function?
- Promise Personal Assistant position
- It was broken by Valjean and Monsieur Thénardier in the theatre?
- Secretary on job release
- Release pop record on the radio
- Plebeian accepting one’s word of honour
- European artist being held up inside gets temporary release
- Secretarial work release scheme?
- Language used by people in Pennsylvania has a continuous trilling sound they say
Buddy explains!

The straight part
We know that "release scheme" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case release scheme = parole.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 PAROLE mean?
PAROLE noun- The release of a former prisoner under condition of compliance with specific terms.
- The amount of time a former prisoner spends on limited release.
- A word of honor, especially given by a prisoner of war, to not engage in combat if released.
- Language in use, as opposed to language as a system.
- (immigration law) The permission for a foreigner who does not meet the technical requirements for a visa to be allowed to enter the U.S. on humanitarian grounds.
- A watchword given only to officers of guards; distinguished from the countersign, which is given to all guards.
- An oral declaration; see parol.
- To release (a prisoner) on the understanding that s/he checks in regularly and obeys the law.