Clue: Charles, say – Bob's initial start in Open ends in bogey, birdie, par (5)
Answer: BOYER
Explanation: Charles, say – Bob's initial start in Open ends in bogey, birdie, par (5)
B(ob) + O(pen) + "ends" of "boge**Y**, birdi**E**, pa**R**" 
*Charles Boyer was a French actor, most famous for movies like "Gaslight" (1944) and "Algiers" (1938)