The most common and most likely answer to this crossword clue is the 2 plus 3 letter word IN OFF
I've seen this crossword clue in The Daily Telegraph
I
N
O
F
F
More clues leading to the result IN 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 IN OFF mean?
IN OFF noun- The situation where the cue ball goes into a pocket after striking the object ball.
- Of the cue ball: (going) into a pocket, after cannoning another ball.