Ceramic floor piece (4)
I believe the answer is:
tile
'ceramic floor piece' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tile that I've seen before include "Scrabble piece" , "Roofing material" , "Mah-jong piece" , "Glazed piece of earthenware as for lining walls" , "Oblong piece of glazed clay for bathroom wall" .)