Related Clues:

• This has cut smoking
• Sea-blue, describing church body might you say?
• By yard reversing vehicle for service
• Fleet - blue
• Ships - blue!
• Blue - service
• Blue - ships and seamen
• Nation's warships
• Senior service
• Class of warships
• Seagoing military force
• Army's football rival
• Armed service
• The blue of many blazers
• Oldest British service branch