Possible Clues:

• Obscure eastern doctrine recollected
• Arcane religious practice involving supporter, not leader
• Difficult to get credit, one broke
• Hidden, abstruse
• Obscure playground rumour finally true
• Arcane ceremony involves topless runner-up
• Obscure diet once developed by head of research
• Credit one novel to be profound
• Puzzling trick covered by journalist in solemn observance
• Obscure journalist admits trick in formal practice