The most common and most likely answer to this crossword clue is the 4 plus 2 letter word OWNS UP
I've seen this crossword clue in The Guardian
O
W
N
S
U
P
More clues leading to the result OWNS UP
- Admits old winos burp now and then
- Allows to have drink
- Out-of-town supermarket admits responsibility
- Confesses to being part of a town’s uprising
- Comes clean with personal statement, primarily in court
- Admits private matter retrospectively
- Admits having property increasing in price
- Coughs? Have a little drink
- Admits to private drink
- Admits getting personal over drink
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.