The most common and most likely answer to this crossword clue is the 10 letter word PHENOMENON
I've seen this crossword clue in The Times
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More clues leading to the result PHENOMENON
- Marvel when one starts to hit problems in retirement, and soldiers on
- Amazing person spreading new hope to enthral dissenters
- Old fellows against backing Penny, a female prodigy
- Remarkable development; quiet woman leads ordinary fellows on
- Quiet female leading old chaps on — remarkable thing
- Men on phone about an amazing spectacle
- Pub’s first “Chicken” sign showing something amazing
Buddy explains!
The straight part
We know that "Marvel" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case marvel = phenomenon.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 PHENOMENON mean?
PHENOMENON noun- A thing or being, event or process, perceptible through senses; or a fact or occurrence thereof.
- (by extension) A knowable thing or event (eg by inference, especially in science)
- A kind or type of phenomenon (sense 1 or 2)
- Appearance; a perceptible aspect of something that is mutable.
- A fact or event considered very unusual, curious, or astonishing by those who witness it.
- A wonderful or very remarkable person or thing.
- (chiefly Kantian idealism) An experienced object whose constitution reflects the order and conceptual structure imposed upon it by the human mind (especially by the powers of perception and understanding).