Pursuit of pleasure (8)
I believe the answer is:
hedonism
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pursuit of pleasure</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 hedonism that I've seen before include "The belief that pleasure is the chief good in life" , "His demon (anag.)" , "The pursuit of and devotion to pleasure" , "System based on pleasure as the highest good" , "Living for pleasure" .)