The most common and most likely answer to this crossword clue is the 6 letter word TASERS
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Buddy explains!
The straight part
We know that "Stunning weapons" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case stunning weapons = tasers.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 TASERS mean?
TASERS noun- A Taser, a handheld device made by Taser International intended to immobilize another by delivering an electric shock.
- (by extension) Any electroshock stun gun.
- To shock a person, thing, individual, or animal with a handheld device with the electric shock that it delivers; to stun with a stun gun.
- To strike verbally or gesturally with ill intents.