Possible Clues:

• Not exactly concerned with odours in suburban streets?
• Symbols on the flags of Algeria and Azerbaijan
• Dinner roll shapes
• Money invested in plant to produce certain shapes
• Cartel every so often picks up bent ways
• Things shaped like the waxing moon
• They are curved about things for the nose at last
• Parts of a circle, shapes of the moon at certain times
• See about the smells of the curves