The most common and most likely answer to this crossword clue is the 7 letter word COMICAL
I've seen this crossword clue in The Daily Telegraph
C
O
M
I
C
A
L
More clues leading to the result COMICAL
- Absurd, flaky stuff occurring during depression
- Throw speaker's aid into burner, causing scream?
- Funny bug coated in black stuff
- Funny, Colonel drinking mineral
- Funny black stuff coating item used by stand-up?
- Witty colonel drinking mineral
- Funny business with amended claim
- Laughable claim thrown out by company
- Mike is absorbed by output of mine — that’s funny
- Funny business: false claim
Buddy explains!

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 COMICAL mean?
COMICAL adjective- Originally, relating to comedy.
- Funny, whimsically amusing.
- Laughable; ridiculous.