Monument honouring the fallen (8)
I believe the answer is:
cenotaph
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">monument honouring the fallen</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for cenotaph that I've seen before include "Monument honouring persons buried elsewhere" , "Monument to people whose remains are interred elsewhere" , "Whitehall memorial" , "Monument to those killed in war" , "Tomb-like monument to people buried elsewhere" .)