The most common and most likely answer to this crossword clue is the 9 letter word LAMEBRAIN
L
A
M
E
B
R
A
I
N
More clues leading to the result LAMEBRAIN
- Innocent person swallowing drug — wet person being stupid
- Turkey supporter follows game at home
- . One is stupid to seek support in menial work
- “The fool will fault the shower”, said Spooner
- Fool's menial work gains support
- Marine lab disseminated dope
- Lunkhead wrecked marine lab
- Idiot left Maine bar in shambles
Buddy explains!

The straight part
We know that "dope" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dope = lamebrain.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 LAMEBRAIN mean?
LAMEBRAIN noun- A fool.