Record destroyed? That's an insult (3,4)
I believe the answer is:
put down
'insult' is the definition.
(thesaurus)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for put down that I've seen before include "Slight" , "Quell; snub" , "crushing snub" , "Write" , "Record - suppress - disparage" .)