A heartless story, song and dance expert (10)
I believe the answer is:
aficionado
'expert' is the definition.
(I've seen this before)
'a heartless story song and dance' is the wordplay.
'heartless' says to hollow out the word (remove centre letters).
'story' becomes 'fiction'.
'song and dance' becomes 'ado' (I've seen this before).
'fiction' with its middle removed is 'ficion'.
'a'+'ficion'+'ado'='AFICIONADO'
(Other definitions for aficionado that I've seen before include "Admirer" , "Fan; enthusiast" , "Fan (Sp.)" , "Informed enthusiast" , "Devotee" .)