Related Clues:

• In the dumps
• Like some promises
• With 99-Across, desirable for dieters
• Way down
• Drain to the bottom
• Fluid-level reading
• Almost out
• Ignoble
• Clean out
• Bummed out, so to speak
• Bottom price over a period
• Gearshift selection
• Needing a fill-up
• Handed or headed start
• Fluid-level reading, sometimes