Voyeur's characteristic seen in riotous epic re-run (9)
I believe the answer is:
prurience
'voyeur's characteristic' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'riotous epic re-run' is the wordplay.
'riotous' is an anagram indicator.
're-run' becomes 'rerun' (synonyms).
'epic'+'rerun'='epicrerun'
'epicrerun' anagrammed gives 'PRURIENCE'.
'seen in' is the link.
Can you help me to learn more?
(Other definitions for prurience that I've seen before include "Lewdness -- epic rerun (anag)" , "Unhealthy interest in sex" , "Lust" , "Morbid interest in sex etc" , "Salaciousness" .)