Possible Clues:

• Marathon setting
• Where Pericles lived
• Sounds as if one might get fat at hens there
• Grand city always rejected the country
• Sounds as if with the help of this place there'd not be a squeak out of it
• In some degree, Celts make a nation
• Hellenic state
• In general people agree certain changes are needed in this country
• Get at hens where there's fat, by the sound of it
• Place the fat here, by the sound of it