The most common and most likely answer to this crossword clue is the 5 plus 4 letter word RIFLE SHOT
I've seen this crossword clue in The Times
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More clues leading to the result RIFLE SHOT
- Potential killer in family into mob violence
- Use of weapon when body enters fray
- Report holes being punched in crevice
- Report civil disturbance about what carnivores eat?
- Report unrest involving one’s family
- Starter despatched, desserts fresh out of the oven in range of slugs
- Confusion around one’s family — one of several that got JFK?
- Uproar about bodily appetites may be life-threatening
- Discharge that damages body during uproar
- Attack with the gun could do for flier
Buddy explains!

The straight part
We know that "Use of weapon" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case use of weapon = rifle shot.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.