The most common and most likely answer to this crossword clue is the 8 letter word FARCICAL
I've seen this crossword clue in The Times
F
A
R
C
I
C
A
L
More clues leading to the result FARCICAL
- Half of crackers fail to go off? Ridiculous!
- Crazy amateur fliers heading skyward, with Charlie on board
- Rising air force commander a liberal? That’s absurd
- Ridiculous fine overturned, circa a pound
- Distant commander with a touch of levity? That’s ridiculous
- Female Commander-in-Chief dropped into Asian sea? Absurd
Buddy explains!

The straight part
We know that "Crazy" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case crazy = farcical.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 FARCICAL mean?
FARCICAL adjective- Resembling a farce; ludicrous; absurd.