Possible Clues:

• A CID could not be so base
• A vacant look shown by boxer? It's not acid
• It's base, but never a CID matter
• In Dundalk, a little base
• Such as, eg, caustic soda
• In pH terms, not acid
• In chemistry, a base that dissolves in water
• Mineral salt found in arid soil
• With a base that's not 26 down
• Poor soil ingredient