Undying (7)
'undying' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ageless that I've seen before include "Enduring" , "Lasting a long time" , "unaffected by time" , "Long-lasting -- sea legs (anag)" , "Sea-legs (anag.)" .)
'undying' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for eternal that I've seen before include "One being forever" , "going on for ever" , "with lasting benefit" , "Never failing" , "Imperishable" .)
'undying' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for immortal that I've seen before include "Great person" , "God" , "Undying" , "Not subject to death" , "never to be forgotten" .)