Definitely safe or successful (4,3,3)
I believe the answer is:
home and dry
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">definitely safe or successful</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 home and dry that I've seen before include "Successfully arrived at the end of a difficult enterprise" , "Having achieved one's objective" , "Definitely safe or successful" , "In a position to reach a goal without much further difficulty" .)