Without warning (6)
There are a few possibilities for this:
sudden
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">without warning</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for suddenly that I've seen before include "Quickly, unexpectedly" , "In an unexpected manner" , "Unexpectedly, abruptly" , "Without any warning, unexpectedly" , "Quickly and without warning" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">without warning</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sudden that I've seen before include "Quickly, without notice or warning" , "Immediate and surprising" , "Occurring unexpectedly quickly" , "Done unexpectedly" , "'Unexpectedly, without warning (6)'" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">without warning</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Another definition for unannounced that I've seen is " Not publicised".)