Carefulness (7)
I believe the answer is:
caution
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">carefulness</span>' is the definition.<br/ ><span class="explanation-format__explanation">(caution is a kind of carefulness)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for caution that I've seen before include "Prudent wariness" , "Hoot" , "Care taken to avoid danger" , "Attention to possible danger" , "Admonish - warning" .)