Possible Clues:

• May be counted as a hazard in headquarters
• Organic relic in archaeological analysis
• Certain allergy sufferer's bane
• Fertilising powder
• What's often blowing in the wind
• What sticks to insects
• It's loved by honeybees
• Hay fever factor
• Hay fever sufferer's bane
• Vote on a couple of points that may need to be counted