Sign of life (6)
'sign of life' is the definition.
(breathing shows someone is alive)
This is all the clue.
(Other definitions for breath that I've seen before include "Respiration" , "Air received and expelled" , "from which inspiration may be drawn" , "An inhalation and exhalation" , "Air in an out of the lungs" .)
'sign of life' is the definition.
This is the entire clue.
(Other definitions for heartbeat that I've seen before include "Animating force" , "Pulse of cardiac origin" , "Circulation noise" , "Essential pulsation" .)
'sign of life' is the definition.
(a person's pulse)
This is all the clue.
(Other definitions for pulse that I've seen before include "A general opinion" , "Bustle" , "Seed of bean or pea plant" , "Beat or throb of heart" , "Edible seed from various pod plants" .)