What does 10 Y for a F D mean?

In the context of a cryptic crossWord puzzle, "10 Y for a F D" typically means "10 years for a fair deal." This clue suggests a phrase or term related to a legal or contractual agreement where a fair deal is made in exchange for a specific period of time, which in this case is 10 years. Cryptic crossWord clues often involve Wordplay and require a deep understanding of language nuances to decipher accurately.