Dirty food emptied bakery (6)
I believe the answer is:
grubby
'dirty' is the definition.
(similar in meaning)
'food emptied bakery' is the wordplay.
'food' becomes 'grub' (grub can informally mean food).
'emptied' means to remove the middle letters.
'bakery' with its centre removed is 'by'.
'grub'+'by'='GRUBBY'
(Other definitions for grubby that I've seen before include "Dirty, grimy" , "Dirty, could do with with a wash" , "Dirty or unwashed, as urchin may be" , "Soiled" , "Covered with ingrained dirt" .)