Related Clues:
- Yes, this might make 21 across quite sound
- Yes, it's on board for one to monkey with
- Be agreeable at the double on board
- Sounds like what you need two of for 15 down? Yes
- When on board, the primate has to obey like this
- On board it is agreeable to have a primate
- By the sound of it, one might look so favourably thus
- Yes, on board it's coming at the double for the primate
- The primate is agreeable on board
- Sailor's "yes"
- Sailor's "sure"
- English sí, at sea
- "Sure thing, skipper!"
- Caucus call
- Yes at sea