The most common and most likely answer to this crossword clue is the 9 letter word FLECHETTE
F
L
E
C
H
E
T
T
E
Buddy explains!
The straight part
We know that "Dart fired to wound" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dart fired to wound = flechette.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 FLECHETTE mean?
FLECHETTE noun- A small sharp antipersonnel projectile, used as shrapnel, fired from a shotgun, or scattered from an aircraft.
- The game of lawn darts.