Possible Clues:

• The producer's favoured opening - and the alternative
• Person originally making short list
• Creative type making opening in wrought iron
• Architect
• First man to devise outlet in wrought iron
• Architect's endless list
• Marconi for example on Isle of Wight holiday, forgetting a name
• Popular outlet in the centre of Cork produced by architect
• Creator of new design put hole in wrought iron
• One creates liquid vintner's keeping over