Related Clues:

• The turn-up isn't a precious stone by the million to go off like that
• Give Margaret a weight for millions
• Nuclear test unit
• A lot of explosive, too unstable in the oven
• Not a stone turned by the big bang?
• Size of big explosion turning up no precious stone
• Atomic bomb unit
• Explosive power unit
• Unit of a huge explosion
• It's not a stone to be lifted — it's a heavy weight
• Two million pounds
• Unit for explosive force
• In habit of bagpiper, perhaps, to preserve old blowing power
• Showing up a far from brilliant measure of bomb's power
• Explosive yield measure