Answer: rideshotgun

AnswerCrossword Clue
RIDESHOTGUNGuard the strongbox, in westerns
RIDESHOTGUNSit beside the driver
RIDESHOTGUNSit up front
RIDESHOTGUNNot take a back seat to anyone?
RIDESHOTGUNAccompany in the front seat
RIDESHOTGUNTake the passenger seat
RIDESHOTGUNNot be in the driver's seat
RIDESHOTGUNA back-seat driver can't do this