Pottery source (4)

I believe the answer is:
clay
(Other definitions for clay that I've seen before include "Earthenware" , "Court surface" , "Sticky earth; human substance (poet.)" , "Earth, soil" , "Brick/pottery material" .)
I believe the answer is:
clay
(Other definitions for clay that I've seen before include "Earthenware" , "Court surface" , "Sticky earth; human substance (poet.)" , "Earth, soil" , "Brick/pottery material" .)