The most common and most likely answer to this crossword clue is the 8 letter word CRACKPOT
I've seen this crossword clue in The Times
C
R
A
C
K
P
O
T
More clues leading to the result CRACKPOT
- Damage ceramic vessel? Crazy
- Crazy attempt on prize
- Eccentric person’s first-class pool
- Eccentric, if excellent corporation
- Mad to split prize
- Nutter’s constant stand on marijuana
- Bananas — excellent with marmite?
- What careless cook may do is eccentric
- Mad attempt to park initially in reverse
- What clumsy ceramist might do is crazy
Buddy explains!
The straight part
We know that "Mad" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case mad = crackpot.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 CRACKPOT mean?
CRACKPOT noun- An eccentric, crazy or foolish person. A kook.
- Someone addicted to crack cocaine (i.e. a drug addict).
- Eccentric or impractical.