Possible Clues:

• Shaw play
• Frank's one in the play
• Frank article from Shaw
• Suitor put off by The Silver Box?
• Outspoken article by GBS
• Frank has heart set on winning her?
• Play that has power - gave first performance?
• 1970 Dawn hit
• Outspoken article by GB Shaw
• Able, did Frank, make play from G.B.S.