Thoughtful desecration? Ridiculous! (11)
I believe the answer is:
considerate
'thoughtful' is the definition.
(associated in meaning)
'desecration? ridiculous' is the wordplay.
'ridiculous' indicates an anagram.
'desecration' is an anagram of 'CONSIDERATE'.
(Other definitions for considerate that I've seen before include "Thoughtful for the feelings of others" , "Mindful of others' well-being" , "Thinking of others" , "Showing care" , "Unselfish" .)