Possible Clues:

• Partition in nose between nostrils
• A bull's may be pierced
• In sum, there's a crooked pet in the nose
• Each one of 20 down has one for a month to start with
• Dividing membrane
• Partition problem gripped English parliament extremely
• Partition between two cavities of the nose
• Partition between the nose cavities
• Partition between nose cavities
• Section between two inspiring passages?