Related Clues:

• Soldiers concealed by very large signs
• Outside gents there may be extra-large signs
• Warning signs from ladies wife's dismissed
• Signs of fictional voyager heading north and south
• Seers say they see them
• Signs from above
• Sailor accepting soldiers' forebodings
• Threats from very big blokes inside!
• Warning signs of half the adult population losing head
• Signs nothing -- and people sail without trouble
• Emblems of danger and signals to stop
• Black cats, perhaps
• Red skies, to sailors
• Eclipses, to the ancients
• Bad signs