Related Clues:

• Runs against
• Beaver constructions
• Takes the anti side
• Stands against
• Prevents the movement of, gets in way
• Examines for accuracy
• Puts at a disadvantage
• Controls to secure accuracy - may accompany balances
• Three-dimensional shapes with six sides
• Obstructs, blocks
• Impedes, obstructs
• Gets in the way of or prevents
• After work, the belle works in 21 across
• One is not four, by the sound of it, in one's attitudes to work
• It's no help when they don't come to the fore, perhaps