Suppress record (3,4)
I believe the answer is:
put down
This clue is a double definition.
'suppress' is the first definition.
(thesaurus)
'record' is the second definition.
(synonyms)
(Other definitions for put down that I've seen before include "Quell - crushing remark (3,4;3-4)" , "Write" , "Quell; snub" , "Slight" , "Record - suppress - disparage" .)