Trite saying (6)
I believe the answer is:
cliche
'trite saying' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for cliche that I've seen before include "Nothing new in that, so to speak" , "Tag" , "Commonplace remark, banality" , "Trite phrase" , "Tired 21/12 [TURN OF PHRASE]" .)