Least risky (6)
I believe the answer is:
safest
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">least risky</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 safest that I've seen before include "most reliable" , "most free from risk" , "Most secure and free from danger" , "Most secure and protected" , "Most dependable" .)