Cruelty (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cruelty</span>' is the definition.<br/ ><span class="explanation-format__explanation">(deriving pleasure from cruelty)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for sadism that I've seen before include "Deliberate cruelty" , "Perverse pleasure" , "Enjoyment taken in inflicting pain or cruelty" , "Dim ass (anag)" , "Love of inflicting pain" .)
(Other definitions for meanness that I've seen before include "spite" , "Miserly quality" , "Scrooge-like quality" , "Lack of generosity" , "'Stinginess, parsimony (8)'" .)