Possible Clues:

• Actress Alvarado
• With 32-Down, 'Lemon Tree' singer
• Certain Caribbean, for short
• Lopez with the 1965 hit 'Lemon Tree'
• Port-of-Spain resident, for short
• Lopez who played Jiminez in "The Dirty Dozen"
• Lopez who sang "If I Had a Hammer"
• Certain Caribbean islander, informally
• 'Lemon Tree' musician Lopez
• -- Lopez, US male vocalist with hit 'If I Had a Hammer' in 1963