The most common and most likely answer to this crossword clue is the 10 letter word LACERATION
I've seen this crossword clue in The Guardian
L
A
C
E
R
A
T
I
O
N
More clues leading to the result LACERATION
- Tearing of delicate fabric in front of allotment
- Fabric helping injury
- Limited amount of material for cutting
- Cut Spike’s allowance
- Fine material helping wound
- Cut material, fixed amount
- Cut a percentage to lure Chief Engineer going behind money
- Ragged wound for one rodent eating large cat? Just the opposite!
- Slash secure allowance
- Slash quota of curtain material?
Buddy explains!

The straight part
We know that "injury" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case injury = laceration.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 LACERATION mean?
LACERATION noun- An irregular open wound caused by a blunt impact to soft tissue.
- The act of lacerating or tearing.