The most common and most likely answer to this crossword clue is the 9 letter word VIRTUOSOS
V
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Buddy explains!
The straight part
We know that "Masters" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case masters = virtuosos.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 VIRTUOSOS mean?
VIRTUOSOS noun- An expert in virtù or art objects and antiquities; a connoisseur.
- Someone with special skill or knowledge; an expert.
- Specifically, a musician (or other performer) with masterly ability, technique, or personal style.