Related Clues:

• Responses to bridge bids?
• Mate's replies
• Nautical affirmatives
• Mariners' assents
• Madagascan lemurs
• Are they so beastly agreeable on board?
• Getting apes on board? Yes
• World's largest nocturnal primates
• Bridge responses
• Responses to captains
• A couple of affirmatives for primates
• Long-fingered lemurs