Like many bathroom floors (5)
I believe the answer is:
tiled
'like many bathroom floors' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tiled that I've seen before include "Lined with small glazed rectangles, say bathroom" , "Like many shower walls" , "Like many roofs" , "Covered the roof" , "like bathrooms" .)