Perhaps Clark’s end of house? (5)
I believe the answer is:
gable
I believe this clue is a double definition.
'perhaps clark's' is the first definition.
(actor Clark Gable)
'end of house?' is the second definition.
(part of a a house)
(Other definitions for gable that I've seen before include "American film star, d. 1960" , "Actor's" , "Triangular top of side wall" , "Section of wall between roof slopes" , "American actor" .)