Profanation (9)
I believe the answer is:
sacrilege
'profanation' is the definition.
(I know that profanation can be written as sacrilege)
This is the entire clue.
(Other definitions for sacrilege that I've seen before include "Sinful behaviour" , "Violation of something sacred" , "Violation of a holy thing" , "Blasphemous behaviour" , "profanity" .)