The most common and most likely answer to this crossword clue is the 9 letter word FANTASTIC
I've seen this crossword clue in The Times
F
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More clues leading to the result FANTASTIC
- Great cheers and no end of criticism given to supporter
- Sick cat faints? That’s bizarre
- Strange facts I discovered about insect — amazing!
- Short Disney movie about toys primarily—considered from the outset as brilliant
- Amazing fizzy drink gets a lot of criticism
- Fiats can’t crash? That’s unbelievable!
- Commuting fat cats in capital
- Wonderful soft drink – it’s flipping cold
- Out of favour, Spanish king’s daughter given endless criticism – incredible!
- Awesome worker taking drink in Liverpool, say?
Buddy explains!

The straight part
We know that "amazing" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case amazing = fantastic.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 FANTASTIC mean?
FANTASTIC noun- A fanciful or whimsical person.
- Existing in or constructed from fantasy; of or relating to fantasy; fanciful.
- Not believable; implausible; seemingly only possible in fantasy.
- Resembling fantasies in irregularity, caprice, or eccentricity; irregular; grotesque.
- Wonderful; marvelous; excellent; extraordinarily good or great (used especially as an intensifier).