Possible Clues:

• Bit of 22 down around the street with mortar
• What a nuisance to start to beat the mortar
• Mortar's companion
• Powder producer
• Word from the Latin for ''crush''
• Spice grinder
• Pain in the neck for the French employed in the crush in the ground?
• Mortar tool
• Tool used in mortar
• Soft steel being flexible, it needs mortar