Possible Clues:

• If there's fire, it's fifty-fifty something new inside will be needed
• Judge badly to top up
• Threat from Jessie Fothergill
• Bar request
• Second drink, so to speak
• If one referee gets sick, get another one
• With the referee indisposed, this could be a replacement
• Second charge makes man on field poorly
• Replace contents
• Thus may the referee get sick if being just a stand-in