Maestro getting gold lead first (9)
I believe the answer is:
conductor
'maestro' is the definition.
'gold lead first' is the wordplay.
'gold' becomes 'or' ('or' is the heraldic name for gold).
'lead' becomes 'conduct' (synonyms).
'first' says to put letters next to each other.
'or' put after 'conduct' is 'CONDUCTOR'.
'getting' acts as a link.
(Other definitions for conductor that I've seen before include "Train guard" , "Director - band leader" , "Director of an orchestra" , "Leader of a group of musicians" , "who may wave his hands about?" .)