Powerless (8)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">powerless</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for impotent that I've seen before include "Lacking power" , "Helpless, powerless" , "Ineffective" , "Mon petit may be powerless" , "Useless" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">powerless</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for unable that I've seen before include "Not having the neccessary means" , "Old, weak" , "Incompetent or powerless" , "Lacking the necessary skills" , "Lacking power (to do something)" .)
(Other definitions for over a barrel that I've seen before include "In a mess" , "Unable to manoeuvre" , "forty gallons or so?" , "forty-odd gallons of beer?" .)