Ever youthful Eagles management is finished (7)
I believe the answer is:
ageless
'ever youthful' is the definition.
(I've seen this before)
'eagles management is finished' is the wordplay.
I cannot quite understand how this works, but
an anagram of 'eagles' is 'ageles' which is present in the answer.
A single letter 's' remains which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for ageless that I've seen before include "not appearing to get old" , "Ever young" , "Never appearing to grow old" , "Long-lasting -- sea legs (anag)" , "Forever young" .)