The most common and most likely answer to this crossword clue is the 6 letter word PUTTEE
I've seen this crossword clue in The Daily Telegraph
P
U
T
T
E
E
More clues leading to the result PUTTEE
Buddy explains!
The straight part
We know that "Item of uniform" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case item of uniform = puttee.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 PUTTEE mean?
PUTTEE noun- A strip of cloth wound round the leg, worn for protection or support by hikers, soldiers etc.
- (grammar) Something that is put somewhere; the object of the action of putting.