The most common and most likely answer to this crossword clue is the 8 letter word ODIOUSLY
I've seen this crossword clue in The Daily Telegraph
O
D
I
O
U
S
L
Y
More clues leading to the result ODIOUSLY
- You’d soil pants in a horrible way
- You and I sold out in a hateful way
- In a 3 way, oddly collecting debts for second daughter
- Prig quitting monstrously, in a repulsive way
- Disgustingly, I sold you for redemption
- Unusually heartless, collecting proof of debts in a horrible manner
- Strangely heartless, collecting debts in despicable manner
Buddy explains!
The straight part
We know that "in a horrible manner" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case in a horrible manner = odiously.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.