Possible Clues:

• 'Is your sailor boy no more when there's little on? (4,6)'
• There's little doing when there's just a drowned sailor boy
• When there's nothing doing for the late sailor boy
• When there are few visitors - just your salt water boy
• Not a peak period for your late sailor boy?
• Is your sailor boy no more?Nothing doing, then
• When there's little happening, due to the 3 down of time, perhaps