The most common and most likely answer to this crossword clue is the 6 letter word WHIMSY
W
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More clues leading to the result WHIMSY
- My wish is fanciful?
- My wish for something fancy
- Why put about one manuscript? It’s an impulsive notion
- Reason to include one piece of writing that’s fanciful
- Question about one manuscript’s gentle fantasy
- Is trapped male governed by reason? What an odd idea!
- Fancy wife communicates finally, say, with husband
- The reason that keeps one writing fantasy
- Question about Picaroon’s singular flights of fancy
Buddy explains!

The straight part
We know that "What an odd idea!" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case what an odd idea! = whimsy.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 WHIMSY mean?
WHIMSY noun- A quaint and fanciful idea; a whim; playfully odd behaviour.
- An impulsive, illogical or capricious character.
- A whim (capstan or vertical drum).
- A jigsaw puzzle piece that has been cut into a recognizable shape, as if on a whim; often the shape is representative of the theme of the image used for the puzzle.
- To fill with whimsies or whims; to make fantastic; to craze.