The most common and most likely answer to this crossword clue is the 4 letter word MOOÂ
I've seen this crossword clue in The Guardian
M
O
O
Â
Buddy explains!
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 MOOÂ mean?
MOOÂ noun- The characteristic lowing sound made by cattle.
- A foolish woman.
- Of a cow or bull, to make its characteristic lowing sound.
- The characteristic sound made by a cow or bull.