The most common and most likely answer to this crossword clue is the 9 letter word MINEFIELD
I've seen this crossword clue in The Guardian
M
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More clues leading to the result MINEFIELD
Buddy explains!

The straight part
We know that "Dangerous situation" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dangerous situation = minefield.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 MINEFIELD mean?
MINEFIELD noun- An area in which land mines have been laid.
- (by extension) A dangerous situation.
- A pitch that has dried out and crumbled and on which the ball is bouncing and spinning unpredictably.