Spots on spuds (4)
I believe the answer is:
eyes
'spots on spuds' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for eyes that I've seen before include "Poetically, they're the windows of the soul" , "The first things children open on Christmas Day" , "Looks at - organs" , "private detectives" , "Narrowly observes" .)