Kitchen sink item (6)
(Other definitions for sponge that I've seen before include "Porous mass in oceans" , "Light cake; aquatic invertebrate" , "Porous substance to absorb liquid" , "Aquatic creature; cake" , "marine life?" .)
(Other definitions for dishrag that I've seen before include "Washing-up cloth" , "used to clean in kitchen" , "Wiper in the kitchen" , "American tea towel" , "Cleaner" .)