Name an unusually live artist (6)
I believe the answer is:
elvira
'name' is the definition.
'an unusually live artist' is the wordplay.
'an unusually' indicates anagramming the letters.
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'live' with letters rearranged gives 'elvi'.
'elvi'+'ra'='ELVIRA'
(Other definitions for elvira that I've seen before include "Girl's name (from Don Giovanni)" , "Coward spirit" .)