The most common and most likely answer to this crossword clue is the 8 letter word CESSPOOL
I've seen this crossword clue in The Times
C
E
S
S
P
O
O
L
More clues leading to the result CESSPOOL
- Filthy place where cops lose criminal
- Cops lose suspect in den of vice
- After vacation, cruise ship ring up refuse collector
- Sink’s chrome shatters — poncho optional when taking out central bits
- These French, on a roll, find no place to swim
- Cop loses out in disgusting place
- Wet waste deposit turned dry with application of reel
- Tax collection is a disgusting area
- US government agency protecting investors backing revolutionary coils in a disgusting and corrupt place
- Tax collection is complete waste
Buddy explains!

The straight part
We know that "Filthy place" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case filthy place = cesspool.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 CESSPOOL mean?
CESSPOOL noun- An underground pit where sewage is held.
- (by extension) A filthy place.