One’s death is represented here (9)
I believe the answer is:
headstone
'here' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'one's death is represented' is the wordplay.
'is represented' is an anagram indicator.
'ones'+'death'='onesdeath'
'onesdeath' is an anagram of 'HEADSTONE'.
(Other definitions for headstone that I've seen before include "Graveyard slab" , "It marks a grave" , "Grave marker" , "Slab set at the head of a grave" , "Its stands over a grave, duly inscribed" .)