The most common and most likely answer to this crossword clue is the 4 plus 2 letter word BANG ON
I've seen this crossword clue in The Times
B
A
N
G
O
N
More clues leading to the result BANG ON
- Prohibition ended, almost? Exactly right!
- Outlaw vanished without trace, ultimately? Absolutely right
- Rabbit? Exactly
- Disallow try by a Northampton flanker — dead right!
- It’s right to discuss at tedious length …
- Talk at length? Absolutely right!
- Perfect hit to leg
- Strict prohibition surrounds group beyond state control
- Totally valid rant
- Exactly what Uncle Yap does about Nimrod’s lack of humour?
Buddy explains!

The straight part
We know that "Absolutely right" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case absolutely right = bang 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.