The most common and most likely answer to this crossword clue is the 6 letter word SOUSED
I've seen this crossword clue in The Guardian
S
O
U
S
E
D
More clues leading to the result SOUSED
Buddy explains!

The straight part
We know that "drunk" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case drunk = soused.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 SOUSED mean?
SOUSED verb- To immerse in liquid; to steep or drench.
- To steep in brine; to pickle.
- To strike, beat.
- To fall heavily.
- To pounce upon.
- Inebriated, drunk.