Possible Clues:

• Not all of the cutlery is extremely sharp
• Eking out stored fodder at critical juncture
• Hone could make this keen
• Critical position - blade
• Critical point in the development of a situation
• If one looks sharp one may be balanced there
• Feed English king disguised in position of great danger
• Charge packed into keg in front of Dail, possibly causing such a critical situation
• Anchor containing two metals — that makes for a dangerous situation
• Sharp location where things are finely balanced