They say not to make a mountain out of one (8)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
molehill
(Other definitions for molehill that I've seen before include "? It's what the Italian found in Flanders" , "Don't make a mountain out of one, they say" , "Small mound of earth" , "small rise" , "Mound of earth in garden" .)