Wall decoration (6)
I believe the answer is:
frieze
'wall decoration' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for frieze that I've seen before include "Ornamental band around a room" , "Horizontal band of decoration on a wall near the ceiling" , "Part of temple wall" , "this band goes up the wall" , "Decorated upper part of a wall" .)