The most common and most likely answer to this crossword clue is the 10 letter word STUPENDOUS
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More clues leading to the result STUPENDOUS
- Amazing sunspot due to explode
- Brilliant author in academic setting I dismissed
- Sound upset, drunk, staggering
- Dynamite used on ground alongside places getting knocked over
- Good man to affect greatly old American? That’s astonishing
- Astounding saint to greatly affect love with American
- Sound upset, but regrouping – that’s very impressive
- US Open dust settled? Fantastic!
- Sensational exercises in street destroy our team
- You say Stuart wrote us? Great
Buddy explains!

The straight part
We know that "Astounding" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case astounding = stupendous.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 STUPENDOUS mean?
STUPENDOUS adjective- Astonishingly great or large; huge; enormous.
- Of stunning excellence or degree; marvelous.