Possible Clues:

• Draw on fortune to produce weapon
• Start to sketch donkey on packet, obscuring device
• Device emitting a thick cloud when let off
• Uprising hordes obscuring donkey, black, obscuring device
• Pyrotechnic obscurant
• One's view is clouded when this incendiary device goes off
• Obscuring weapon
• Explosive device used to obscure activity
• Violent mob's trapped male? Certainly with black explosive device
• One's outburst makes it hard to see a way ahead