The most common and most likely answer to this crossword clue is the 11 letter word BREADBASKET
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More clues leading to the result BREADBASKET
Buddy explains!

The straight part
We know that "guts" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case guts = breadbasket.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 BREADBASKET mean?
BREADBASKET noun- A basket used for storing or carrying bread.
- A region which has favourable conditions to produce a large quantity of grain or, by extension, other food products; a food bowl.
- The abdomen or stomach, especially as a vulnerable part of the body in an attack.