Related Clues:

• "They're coming for us!"
• 'In here, quickly!'
• Get behind something, maybe
• Be outta sight?
• Animal retreat
• Surprise party cry
• Conceal British identity somewhat
• Play a game of Sardines, say
• Covered structure from which to observe birds
• Said to be a conflicted character's mask
• One team in an intramural match
• Dig yourself into a hole, say?
• What stowaways do
• 'Don't let them find us!'
• Cry just before the guest of honor arrives at a surprise party