Conductor confused situation, overlooking line and metre (7)
I believe the answer is:
maestro
'conductor' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
(Other definitions for maestro that I've seen before include "Virtuoso" , "Eminent musician" , "special performer" , "Master of an art, or a great conductor of music" , "ace" .)