The most common and most likely answer to this crossword clue is the 3 plus 6 letter word DOG COLLAR
I've seen this crossword clue in Financial Times
D
O
G
C
O
L
L
A
R
More clues leading to the result DOG COLLAR
- Spiritual band?
- Fancy coral and gold adornment for the cloth
- Possession of clergyman, one taking the lead?
- One takes the lead from vicar’s attire
- Band of vicars good to make arrest outside
- … call God or possibly a band of vicars!
- Kit for vicars and boxers?
- Is it worn by a Parson Jack Russell?
- Restraint shown by vicar?
- Lord, being risen, Bacon cut for band of clergy
Buddy explains!

The straight part
We know that "One takes the lead/vicar’s attire" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one takes the lead/vicar’s attire = dog collar.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.