Shabby, worn (4,2,4)
I believe the answer is:
down at heel
I believe this is a double definition.
'shabby' is the first definition.
(I've seen this before)
'worn' is the second definition.
(I've seen this before)
(Other definitions for down at heel that I've seen before include "untidy and slovenly" , "Worn" , "like old Oxford?" , "Having a poor, shabby appearance" , "looking scruffy" .)