The most common and most likely answer to this crossword clue is the 9 letter word ABYSMALLY
I've seen this crossword clue in The Times
A
B
Y
S
M
A
L
L
Y
More clues leading to the result ABYSMALLY
Buddy explains!

The straight part
We know that "in a bad way" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case in a bad way = abysmally.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 ABYSMALLY mean?
ABYSMALLY adverb- Very; incredibly; profoundly; to an extreme degree; dreadfully.