The most common and most likely answer to this crossword clue is the 8 letter word IMPAIRED
I've seen this crossword clue in The Guardian
I
M
P
A
I
R
E
D
More clues leading to the result IMPAIRED
- One politician shown to be damaged
- This writer’s got a partner diminished in strength
- Spoilt brat’s broadcast
- Injured goblin getting a bumpy ride
- Challenged self-description of one who’s married?
- Undermined MP’s excuse for not voting
- I’m married, and spoiled
- I’m mated, being handicapped
- Demon broadcast, defective
- Admission by married person caused damage
Buddy explains!

The straight part
We know that "Injured" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case injured = impaired.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 IMPAIRED mean?
IMPAIRED verb- To weaken; to affect negatively; to have a diminishing effect on.
- To grow worse; to deteriorate.
- A criminal charge for driving a vehicle while impaired.
- Rendered less effective.
- Inebriated, drunk.