Related Clues:

• Hold the line?
• Support goals, e.g.
• Tree anchor
• Salmon, for one
• Ginseng, for one
• Aquarium pet
• Try to find truffles
• Carrot or turnip
• Creel contents
• 67 Across, e.g.
• Equation answer
• Plant's underground part
• Carrot or cassava
• Drop hints, say
• It's underground