Warning of danger (3,4)
There are a few possibilities for this:
red flag
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">warning of danger</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for red flag that I've seen before include "Sign of danger - sign of socialism" , "left-wing message?" , "Left-wing symbol" , "The ... ..., anthem of the British Labour Party" , "Instruction to halt" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">warning of danger</span>' is the definition.<br/ ><span class="explanation-format__explanation">(an alarm alerts you to danger)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for alarm that I've seen before include "Announcement of danger" , "Safety bell or alert signal" , "Agitate" , "Warning bell" , "Fright" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">warning of danger</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for alert that I've seen before include "Vigilantly attentive" , "Wide awake and watchful" , "Watchful and observant" , "Watchful; warning" , "Quick to notice" .)