The most common and most likely answer to this crossword clue is the 4 plus 2 letter word SPOT ON
I've seen this crossword clue in The Guardian
S
P
O
T
O
N
More clues leading to the result SPOT ON
- Notice working? Exactly!
- Court accepting jurist’s conclusion is accurate
- Boy consuming cannabis precisely
- Boy that’s 5? You’ve got it!
- Most accurate, boy bagging trophy
- Server keeping time precisely
- Correct relative inhaling cannabis
- No spinners coming up? Absolutely right
- Time in club is precise
- Exactly right to use tee when restricted by old golfing club
Buddy explains!

The straight part
We know that "Correct" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case correct = spot on.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 SPOT ON mean?
SPOT ON adjective- Correct; accurate; absolutely right
- Excellent