ELO finally played my special tune (6)
I believe the answer is:
melody
'tune' is the definition.
('melody' can be a synonym of 'tune')
'elo finally played my special' is the wordplay.
'finally' says to take the final letters.
'special' is an anagram indicator.
The last letter of 'played' is 'd'.
'elo'+'d'+'my'='elodmy'
'elodmy' with letters rearranged gives 'MELODY'.
(Other definitions for melody that I've seen before include "Sweet music, tuneful song" , "Musical theme" , "Musical line" , "Air, tune" , "My dole (anag.)" .)