The most common and most likely answer to this crossword clue is the 6 letter word SLOPPY
I've seen this crossword clue in The Guardian
S
L
O
P
P
Y
More clues leading to the result SLOPPY
- Very wet Liberal admitted being careless
- Incompetent work on piano – tricky getting round that
- Work at length to stop secret agent becoming careless
- Slipshod line over work admitted by agent
- Careless and sentimental about love, primarily
- Cut through mole, being careless
- Watery lake, wet banks
- Wet coats left, muddy
- Careless agent must accept cut
- Secretive about work and quiet — or careless?
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.
What does SLOPPY mean?
SLOPPY adjective- Very wet; covered in or composed of slop.
- Messy; not neat, elegant, or careful.
- Imprecise or loose.