Usefulness (7)

<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">usefulness</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 utility that I've seen before include "Service such as electricity or water" , "Gas, electricity, etc" , "Usefulness" , "Practicality - public service" , "Benefit" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">usefulness</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 worth that I've seen before include "Merit - value" , "Value (of something)" , "Throw (anag.)" .)
(Other definitions for futility that I've seen before include "No prospect of success" , "Pointlessness" , "Uselessness" .)