Related Clues:

• You see fifty in close, but very powerful, surroundings
• It sounds fresh and is cloudless, but could blow up in a big way
• Sounds new and is evident that it's powerful
• At last it's obvious that this is 28 down
• It's obvious this can be explosive at last
• At last it's obvious - please God - that such warfare is not to be
• With 20 across, The sound of angling in the atomic age
• It's obvious at last that there's power here
• It's obvious at last that this may be explosive
• It's obvious at last it's for a Tom
• Speaking of new patent type of bomb
• Greek character to vindicate form of energy
• Dotty uncle has a right to some kind of family
• Greek character's explicit description of weapon
• Central rule can break down