The most common and most likely answer to this crossword clue is the 8 letter word ENCEINTE
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More clues leading to the result ENCEINTE
Buddy explains!

The straight part
We know that "in trouble?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case in trouble? = enceinte.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 ENCEINTE mean?
ENCEINTE noun- An enclosure.
- The line of works forming the main enclosure of a fortress.
- The area or town enclosed by a line of fortification.
- Pregnant.