Possibly Elvis is not dead (5)
I believe the answer is:
lives
'is not dead' is the definition.
I can't tell whether this definition defines the answer.
'possibly elvis' is the wordplay.
'possibly' indicates an anagram.
'elvis' with letters rearranged gives 'LIVES'.
Can you help me to learn more?
(Other definitions for lives that I've seen before include "Is animate" , "Biographies" , "Resides" , "Elvis (anag) - is not dead" , "See 5" .)