Dirty blurred mark (6)
I believe the answer is:
smudge
(Other definitions for smudge that I've seen before include "Make blurred" , "'Smear, daub (6)'" , "Messy mark" , "A dirty or blurred mark" , "Blotch" .)
I believe the answer is:
smudge
(Other definitions for smudge that I've seen before include "Make blurred" , "'Smear, daub (6)'" , "Messy mark" , "A dirty or blurred mark" , "Blotch" .)