Possible Clues:

• What a bore to have this always inside!
• The sort of flower that's always there form pole to pole
• Britian's longest river
• Shrewsbury river
• One might imagine that this might, perpetually flow from pole to pole
• It seems always to flow from pole to pole
• A banker constantly going in two directions
• Nerves (anag.)
• A river always going in different directions
• Verne's undisciplined banker