Related Clues:

• Intestinal fortitude
• Kishkes
• "No ___, no glory"
• Bravado
• Would the South have the strength to pull them up?
• Courage, colloquially
• Pluck the strings
• Draws courage
• Inside - bottle!
• Intestines - courage
• Fortitude - innards
• Intestines
• Cleans — bottle
• Courage, informally
• Pluck — viscera