The most common and most likely answer to this crossword clue is the 10 letter word ENDANGERED
I've seen this crossword clue in The Daily Telegraph
E
N
D
A
N
G
E
R
E
D
More clues leading to the result ENDANGERED
- Finish filled with wrath — is put at risk
- Stopped suppressing annoyance when threatened
- Threatened goal with cross
- At risk of death by exploding grenade
- Over without annoyance being threatened
- Put in a difficult position and finished full of rage
- Annoyed by objective and exposed to risk
- At risk, bottom sore!
- Finished full of rage and put at risk
- Put in a difficult position when a tip gave offence
Buddy explains!

The straight part
We know that "exposed to risk" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case exposed to risk = endangered.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 ENDANGERED mean?
ENDANGERED verb- To put (someone or something) in danger; to risk causing harm to.
- To incur the hazard of; to risk; to run the risk of.
- In danger, at risk, said of something where there is a strong possibility something bad will happen to it (for example, a species in danger of going extinct)