Possible Clues:

• In dig O from a O?
• 'Slumdog Millionaire' actor -- Kapoor
• Navy relative
• A nothing for dyeing?
• Michael Ondaatje novel, "___'s Ghost"
• Albert went round Ulster plant
• Name that becomes a world capital when bookended by "M" and "A"
• Shrub yielding an indigo dye
• Shrub used in dyeing
• Indigo-yielding plant