Possible Clues:

• One who gives guidance to a raving lunatic
• One plotting a route
• Passenger who gives a rallying call?
• Viagra not working for pilot
• Register private vehicle turned over to Prince Henry, say
• New pilot needs to take on board good crew member
• For example, Henry V, a giant stirring men
• Henry, for example, blundering into a grave out East
• Assistant to driver, terrible man running over reptile in Florida
• Roll one lorry carrying first of goods over — I'll find a way