Related Clues:

• Cruet filler
• Drilling target
• Flight unit
• Flight feature
• Loosen, in a way
• Painter's medium
• Aerobics action
• Down in the dumps
• Escalate, with 'up'
• Azure
• See 71-Across
• Aerobic bit
• Baby-book first
• Crankcase contents
• Bit of instruction