The most common and most likely answer to this crossword clue is the 4 plus 3 letter word PLAY OFF
I've seen this crossword clue in The Daily Telegraph
P
L
A
Y
O
F
F
More clues leading to the result PLAY OFF
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 PLAY OFF mean?
PLAY OFF noun- A final game in a series needed to break a tie.
- A short series of games to select a league champion.