Cryptic crossword clue
They warn of danger, if turning over actual weapons 4,6

The most common and most likely answer to this crossword clue is the 4 plus 6 letter word FIRE ALARMS

I've seen this crossword clue in The Sunday Telegraph
F
I
R
E
A
L
A
R
M
S

Buddy explains!

The straight part
We know that "They warn of danger" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case they warn of danger = fire alarms.
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.

Crossword Answer definitions

Latest crossword clues with full explanations