Possible Clues:

• Heads of turbot, tuna in leek stew requires water to come to the boil
• Stove-top item
• What you'd expect Polly to put on to restrict those in March
• Thing that whistles
• Hot water holder
• A Whistler in the kitchen?
• One may whistle in the kitchen
• One might be steaming
• Whistler, perhaps confined by police, disposing of diamonds
• Where some chips are made