Musical bloke retired, recalling memories (9)
I believe the answer is:
'recalling memories' is the definition.
(evocative means recalling memories or feelings)
'musical bloke retired' is the wordplay.
'musical' becomes 'evita' (Andrew Lloyd Webber musical).
'bloke' becomes 'cove' (both can informally mean a man).
'retired' says the letters should be written backwards.
'evitacove' reversed gives 'EVOCATIVE'.
(Other definitions for evocative that I've seen before include "Evoking deep memories" , "stirring feelings" , "Bringing out strong feelings" , "Tending to arouse memories" , "stimulating" .)