Pleasure-seeker, curiously, might have done this (8)
I believe the answer is:
hedonist
'pleasure-seeker' is the definition.
(I've seen this before)
'curiously might have done this' is the wordplay.
'done this' can be anagrammed to 'HEDONIST'.
However, I'm not clear how this is indicated.
Can you help me to learn more?
(Other definitions for hedonist that I've seen before include "Seeker of sensual pleasure" , "He believes pleasure is the chief good in life" , "A seeker after luxury" , "One who believes in pleasure" , "playboy" .)