The most common and most likely answer to this crossword clue is the 9 letter word MARINATED
I've seen this crossword clue in The Guardian
M
A
R
I
N
A
T
E
D
More clues leading to the result MARINATED
Buddy explains!

The straight part
We know that "soaked" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case soaked = marinated.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 MARINATED mean?
MARINATED verb- To allow a sauce or flavoring mixture to absorb into something; to steep or soak something in a marinade to flavor or prepare it for cooking.