Describing one with the most experience of life (6)
I believe the answer is:
eldest
'life' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe they are linked in a way I don't understand?
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for eldest that I've seen before include "Most advanced in years" , "Most old" , "First in the order of birth" , "Firstborn; led set (anag.)" , "Most aged" .)