Possible Clues:

• G.B.S. devotee
• Outside of Sidmouth, like fliers evoking a writer
• Adjective for "Pygmalion" or "Major Barbara"
• Like Candida and Heartbreak House, not to speak of the Seagull?
• Dramatist's extremely snobbish about The Birds?
• Relating to GBS
• Of George Bernard Shaw and his writings
• Irish writer's works vanish first of all
• Of George Bernard Shaw, or an admirer of same
• Short cut I found with article from Irish writer