Simplicity of resting place long ago sited outside church (9)
I believe the answer is:
innocence
'simplicity' is the definition.
(thesaurus)
'resting place long ago sited outside church' is the wordplay.
I cannot quite understand how this works, but
'church' could be 'ce' (abbreviation for Church of England) and 'ce' is present in the answer.
'outside' could be 'non' and 'non' is present in the leftover letters.
The remaining letters 'ince' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'of' is the link.
Can you help me to learn more?
(Other definitions for innocence that I've seen before include "probity" , "clean?" , "Uncorrupted state" , "Absence of sin" , "Lack of guilt" .)