Roof end (5)
I believe the answer is:
gable
'roof end' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for gable that I've seen before include "Triangular brickwork" , "US actor" , "Triangular top of side wall" , "Triangular part of a wall supporting a ridged roof" , "Part of house" .)