What is referred to by 'ccr proud'?

Which performer is associated with 'ccc'? Based on the clue 'ccny grad clyde haberman writes the nyc column for...', what is the answer? Based on the clue 'ccnys allagaroo cheer is said to come from allez g...', what is the answer? Based on the clue 'ccr left a good job in the city', what is the answer? Based on the clue 'ccr sang of her i love the way you walk i love the...', what is the answer? What is associated with: ccrs 1969 hit proud mary was written by this man the groups lead vocalist? Based on the clue 'cd parker a former texas ranger owns a saloon freq...', what is the answer? Based on the clue 'cd rom also stands for consumer device rendered th...', what is the answer?