Related Clues:

• Unfold, as a theory
• Change, like a Pokemon
• Develop a bug for country consumed by knowledge that's of value to spies, mostly
• Come about over time
• Experience personal growth
• Carry in the uterus
• Change due to mutation, say
• Transform from Pikachu to Raichu, e.g
• Mature circle disowning Republican
• Change for the better, say
• Develop gun taken out of its sheath
• Adapt via natural selection
• Disclose European vehicle at first has nothing revolutionary
• *Weapon in Clue