Possible Clues:

• Naturally one's not given such a mouthful
• Those on bridge perhaps as the fleet is scuttled
• Display in an unnatural smile?
• They have no real bite
• Choppers that may be taken out as the fleet is at sea
• Backing car, around which walkers with torch finally set out at night?
• Wood choppers of old
• Fleet deployed with haste -- such must come out at night
• New gnashers!
• They may be in for supper but then out all night