Possible Clues:

• Page with work by English author
• Religious leader as father figure, ultimately
• Tiara-wearing man who's not entirely comfortable with homosexuality
• Old man, English poet
• Head of the Roman Catholic church
• English poet, d. 1744
• Pius I, e.g.
• World leader with an eponymous 'mobile'
• Francis, for one
• Poet has work displayed in gym