Possible Clues:

• Archer's weapon
• Protracted obeisance to the victor of Crécy?
• Look these days outside our island for medieval weapon
• Agincourt weapon
• Perhaps an inclination not to be short and not to be cross (4,3)
• Not, in short, the sort of obeisance that may be offensive
• It may be drawn in a forest
• Weapon to burn front of ship
• Mediaeval weapon
• Robin Hood weapon