Possible Clues:

• Roman poet born in Spain
• Facility for a listener and another missing person
• Roman poet 39-65AD, author of Pharsalia
• Following fifty you will be able to get to Dublin from here
• It takes under half a century for you to be able to find this near Dublin
• After half a century you may be able to get close to Dublin
• With a pound you may be able to get just outside Dublin
• Roman poet; a missing Lord
• Notorious fugitive peer
• After half a century you are able to be near Dublin