The most common and most likely answer to this crossword clue is the 1 plus 4 plus 3 letter word A FAIR COP
I've seen this crossword clue in The Daily Telegraph
A
F
A
I
R
C
O
P
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.