Death-dealing (5)
'death-dealing' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for fatal that I've seen before include "Resulting in disaster or death" , "Leading to disaster" , "making one late" , "Deadly force" , "critical" .)
'death-dealing' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for lethal that I've seen before include "Capable of causing death" , "Destructive" , "Deadly, potentially fatal" , "All the change can be deadly." , "--- Weapon, Mel Gibson film" .)