The most common and most likely answer to this crossword clue is the 4 letter word UNCO
I've seen this crossword clue in The Times
U
N
C
O
More clues leading to the result UNCO
- Greek character backing firm in Perth, remarkably
- In the Royal Scots fearsome sergeant, say, on uniform
- Strange uniform given to senior soldier
- Remarkable Scots centre missed by world heritage guardians
- Very posh officer without commission
- Extremely posh officer without commission
- Some fun cocktails, strange for the Scots
- Scotsman’s strange? Very
- Italian one has company with rum for a Scot
Buddy explains!

The straight part
We know that "Strange" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case strange = unco.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 UNCO mean?
UNCO adjective- Strange, weird.
- Very.
- Uncoordinated.