Possible Clues:

• Player's cash St Andrews cut
• 41 Down creator Ayn
• One side with money abroad
• Almost entirely lecherous American writer
• Johannesburg currency
• 'The Virtue of Selfishness' essayist, 1964
• Managed old penny as money
• The South African currency
• £ : pound sterling :: R : ___
• Mary ____ was the first British woman to win track and field Olympic gold, in 1964