The most common and most likely answer to this crossword clue is the 9 letter word ABDOMINAL
I've seen this crossword clue in The Times
A
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The straight part
We know that "Gutsy" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case gutsy = abdominal.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 ABDOMINAL mean?
ABDOMINAL noun- A fish of the order Abdominales.
- (usually plurale tantum) An abdominal muscle.
- Of or pertaining to the abdomen; ventral.
- Having the ventral fins under the abdomen and behind the pectoral fins.
- Ventral, in describing a fin.
- Belonging to the order Abdominales of fish.