The most common and most likely answer to this crossword clue is the 12 letter word BILLINGSGATE
I've seen this crossword clue in Independent
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More clues leading to the result BILLINGSGATE
- The scandal of fees charged in this capital market?
- Market charges ending in scandal often
- Poster and sign broadcast entrance where fish sold
- British legislating blasted for its bad language
- Capital market‘s amount of business conducted before alleged scandal?
- In which you may recognise Pollock’s abusive language
- Computer entrepreneur’s taken a cut, hiding bad sign in market
- I get slab prepared outside fish market
Buddy explains!

The straight part
We know that "abusive language" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case abusive language = billingsgate.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.