Related Clues:

• Olive ___
• Escalator feature
• See 50-Across
• Put one's foot down
• Dance lesson
• Salad dressing ingredient
• Cooking staple
• Deep-frying need
• Gait
• Lubricate
• Escalator part
• Musical interval
• Kind of aerobics
• Tanker's cargo
• Van Gogh's 'Irises,' e.g.