Some place, not a pharaoh's empty tomb (8)
I believe the answer is:
cenotaph
'empty tomb' is the definition.
(I've seen this before)
'some place not a pharaoh's' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'CENOTAPH' is hidden in the letters of 'place not a pharaohs'.
(Other definitions for cenotaph that I've seen before include "Monument to the war dead" , "Monument honouring persons buried elsewhere" , "Tomb-like monument to people buried elsewhere" , "Monument to those killed in war" , "Monument to people whose remains are interred elsewhere" .)