"A penny saved ... " is one (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
adage
(Other definitions for adage that I've seen before include "Proverb expressing a general truth" , "Old saying; proverb" , "Saw, proverb" , "Proverb, maxim" , "Well-remembered proverb or saying" .)