Possible Clues:

• Legendary Irish bard
• Legendary Gaelic poet
• 3rd century Gaelic bard and hero
• So-called poet emerging from Vienna is soliciting backing
• O, Saints! That's the boy for the son of Fingal!
• Gaelic bard, son of Fingal
• Legendary Cthree Gaelic bard
• Legendary bard, Ms Phillips, goes after map makers
• One's very much bowled over by an Irish poet
• Legendary Irish poet invented in eighteenth century; is a son (anag.)