Dead (8)
'dead' is the definition.
(I know that dead can be written as deceased)
This is the entire clue.
(Other definitions for deceased that I've seen before include "Defunct" , "departed" , "Late" , "No longer living" , "Recently dead" .)
(Other definitions for end that I've seen before include "Aim or goal" , "Objective or conclusion" , "Aim; terminate" , "Purpose of finish" , "Extreme" .)
'dead' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for extinct that I've seen before include "No longer existing" , "Like a dodo" , "(Species) lost" , "No longer living, like dinosaur" , "Defunct" .)