Related Clues:

• Yes, that gets doubled for the primate
• Yes, it's on board at the double
• Yes, one comes at the double on board
• AU? That's it
• On board, yes, at the double
• Yes, this might make 21 across quite sound
• Be agreeable at the double on board
• Sounds like what you need two of for 15 down? Yes
• No, it's not the sort of sty that's fermenting
• By the sound of it, one might look so favourably thus
• Yes, on board it's coming at the double for the primate
• With the RN would long to be in the affirmative
• 'Yes, this is the sty that's fermenting (3)'
• Is this sty bubbling in no negative way?
• 'Truly'