Answer: tuneup

AnswerCrossword Clue
TUNEUPAdjustment
tuneupadjustment, as of a motor, to improve working condition
tuneupan adjustment to insure efficient operation
TUNEUPAuto correction
TUNEUPPre-concert activity
TUNEUPGap plugs, etc.
TUNEUPGap plugs
TUNEUPAuto garage job
TUNEUPPerformance enhancer
TUNEUPAuto adjustment
TUNEUPAdjust for peak performance
TUNEUPAuto maintenance job
TUNEUPMechanic's job.
TUNEUPGarage job
TUNEUPPrepare for a concert
TUNEUPAnnual auto maintenance, for some
TUNEUPGet ready for a concert
TUNEUPMechanic's offer
TUNEUPMechanic's job
TUNEUPPrepare for playing
TUNEUPPrepare to make music