The most common and most likely answer to this crossword clue is the 10 letter word CELEBRANTS
I've seen this crossword clue in The Times
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More clues leading to the result CELEBRANTS
Buddy explains!
The straight part
We know that "Priests" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case priests = celebrants.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 CELEBRANTS mean?
CELEBRANTS noun- A person who officiates at a religious ceremony, especially a marriage or the Eucharist.
- A person who conducts formal ceremonies in the community, particularly weddings, baby namings, renewals of wedding vows and funerals.
- A person who is celebrating something.