The most common and most likely answer to this crossword clue is the 8 letter word FIENDISH
I've seen this crossword clue in The Daily Telegraph
F
I
E
N
D
I
S
H
More clues leading to the result FIENDISH
- Fine breaking piece of crockery for savage
- I stop tucking into cod, say — far too tough
- Beastly animal biting one on the bottom
- Perhaps carp about close one that’s extremely cruel
- Demonic sea creature’s hiding close to me
- Horrible haddock? Dine, getting upset inside
- Possible description of sudoku, kind of finished
- Complex building finished
- Pal losing rag initially — his indisposition is extremely unpleasant
- Very hard one to complete, outwardly brill?
Buddy explains!
The straight part
We know that "Horrible" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case horrible = fiendish.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 FIENDISH mean?
FIENDISH adjective- Sinister; evil; like a fiend.