In retrospect, part of explicit song actually is without conviction (8)
I believe the answer is:
agnostic
'without conviction' is the definition.
I can't tell whether this definition defines the answer.
'in retrospect part of explicit song actually' is the wordplay.
'in retrospect' is a reversal indicator (in retrospect means looking back).
'part of' indicates a hidden word.
'citsonga' can be found hidden inside 'explicit song actually'.
'citsonga' in reverse letter order is 'AGNOSTIC'.
'is' acts as a link.
Can you help me to learn more?
(Other definitions for agnostic that I've seen before include "One doubts" , "Believing that nothing can be known about the existence of God" , "No firm believer" , "Coasting as one who believes the mind cannot know anything of a god" , "One believes that nothing can be known about the existence of God" .)