Related Clues:

• Run; calling
• Blood carrier, a kind heading off on ambulance initially
• Largest blood vessel
• Busy artery?
• Occupation through time
• Tear shown by minister to Queen
• Key artery
• Abandon a missing black vessel
• Thing that's more than a job
• Major blood artery
• Blood conveyor
• One's work life
• Rush for the job
• Vessel with many branches
• Calling nurse, ringing phone at last