Perhaps an erotic concept (8)
I believe the answer is:
creation
'concept' is the definition.
(I've seen this before)
'perhaps an erotic' is the wordplay.
'perhaps' is an anagram indicator.
'an'+'erotic'='anerotic'
'anerotic' with letters rearranged gives 'CREATION'.
(Other definitions for creation that I've seen before include "The universe, all things" , "Conception" , "Reaction to act of making something new" , "concept" , "The making of something out of nothing" .)