Answer: CONDUCTOR

AnswerCrossword Clue
CONDUCTORMoonlighting electrician?
CONDUCTORCopper, notably
CONDUCTORTour director?
CONDUCTORCollector of a sort.
CONDUCTOROrmandy, for example.
CONDUCTORMehta or Toscanini, e.g.
CONDUCTOROrchestra director
CONDUCTOR"All aboard!" shouter
CONDUCTORHe's disconcerted?
conductorperson who conducts an orchestra or chorus
conductora person or thing that conducts
conductorsubstance that conveys electricity, heat, etc.
conductorguide
conductorofficial on a train