Related Clues:

• Blocks
• Hampers
• Obstructs
• Impedes
• Interferes with
• Puts at a disadvantage
• Impedes, obstructs
• It's no help when they don't come to the fore, perhaps
• Delays as monarch goes among deer
• Prevents progress
• “It is not the dark place that ____, but the dim eye” (Thomas Carlyle)