Possible Clues:

• Boy wonder quality
• Pressure on business and finance area to show rapid development
• Publicity on green conurbation showing early flowering ...
• Premature development put pressure on business to go to London, say
• Development of behaviour in advance of actual age
• Forwardness of new crop outside English urban area
• Forwardness of new copper quietly leaving large town
• Of child, state of having knowledge too soon
• Likewise, so young and so soft about the firm town