Ineffectual person (4)
I believe the answer is:
wimp
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ineffectual person</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 wimp that I've seen before include "Weak cowardly person" , "Milksop" , "Mummy's boy" , "Informally, an ineffectual man" , "Drip" .)