The most common and most likely answer to this crossword clue is the 9 letter word MAGICIANS
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Buddy explains!

The straight part
We know that "wizards" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case wizards = magicians.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 MAGICIANS mean?
MAGICIANS noun- A person who plays with or practices allegedly supernatural magic.
- (sometimes derogatory) A spiritualist or practitioner of mystic arts.
- A performer of tricks or an escapologist or an illusionist.
- An amazingly talented craftsman or scientist.
- A person who astounds; an enigma.