The most common and most likely answer to this crossword clue is the 10 letter word ASTOUNDING
I've seen this crossword clue in The Times
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More clues leading to the result ASTOUNDING
- Incredible temperature detected in a measurement at sea
- Phenomenal cockney pooch caught in a police trap
- A trap to steal pound loses penny? That’s surprising
- Amazing outings and trips
- Staggering home, overwhelmed by gusto, and stumbling
- With regard to finance, capital loss is staggering
- Advanced plumbing needs little time to be installed – amazing
- Article with sample of opinions about tango? Staggering!
- Staggering time taken by a measurement of depth
- Aunt’s doing exercises — incredible!
Buddy explains!

The straight part
We know that "Incredible" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case incredible = astounding.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 ASTOUNDING mean?
ASTOUNDING verb- To astonish, bewilder or dazzle.
- That astounds or astound.