The most common and most likely answer to this crossword clue is the 6 letter word ARMANI
I've seen this crossword clue in The Guardian
A
R
M
A
N
I
More clues leading to the result ARMANI
- A queen entertaining minute for fashion designer
- A queen accepts Meghan’s No 1 fashion icon
- Fashion house providing mostly boring clothes for male
- Man of fashion found among farm animals
- Supply ammunition to one penning article for designer
- Part of jacket seen on an independent fashion designer
- Fashion designer — politician ’Arriet needs one
- Provide means of protection to an international couturier
- Panic when copper goes after weapon designer
- Equip an international designer
Buddy explains!

The straight part
We know that "Man of fashion" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case man of fashion = armani.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.