Conductor: capricious star, me, leader of orchestra (7)
I believe the answer is:
maestro
'conductor' is the definition.
(I've seen this in another clue)
'capricious star me leader of orchestra' is the wordplay.
'capricious' indicates anagramming the letters.
'leader of' suggests taking the first letters.
The initial letter of 'orchestra' is 'o'.
'star'+'me'='starme'
'starme' with letters rearranged gives 'maestr'.
'maestr'+'o'='MAESTRO'
(Other definitions for maestro that I've seen before include "Means of payment" , "best in field" , "A master of any art, like music" , "great musician" , "Good conductor" .)