The most common and most likely answer to this crossword clue is the 10 letter word BRAINCHILD
B
R
A
I
N
C
H
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D
More clues leading to the result BRAINCHILD
- I’ll break arm getting lid off? That’s an original thought
- Bright idea to hit kid on the head?
- Idea from one in local office’s killed regularly
- Idea I introduced in local office – crazy, but not initially
- Divinity student swallowing short measure inside bar gets idea
- Idea showers — cold and hot — should be taken in Berlin daily
Buddy explains!

The straight part
We know that "Idea" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case idea = brainchild.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 BRAINCHILD mean?
BRAINCHILD noun- A creation, original idea, or innovation, usually used to indicate the originators