Related Clues:

• Work periods
• Uses frugally
• Work sessions
• Handles gently, with "on"
• Takes it slow
• Is parsimonious
• Work shifts
• Doesn't push, with "on"
• Fixed amounts of work
• Allots sparingly
• Unbroken periods of work
• Is niggardly, restricts to a small allowance
• Allotted work periods
• Spells of the shade in the ship
• Doesn't gorge (on)