The most common and most likely answer to this crossword clue is the 7 letter word RIG-OUT
I've seen this crossword clue in The Guardian
R
I
G
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O
U
T
More clues leading to the result RIG-OUT
Buddy explains!
The straight part
We know that "Clothing" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case clothing = rig-out.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.