Based on the clue '2 word term for a gathering of reporters held by a...', what is the answer?

Based on the clue '2 word somewhat contradictory sounding term for th...', what is the answer? What is associated with: 2 word steller name for this relative of the dugong the manatee that went extinct around 1768? Based on the clue '2 word term for a chemical unit linking complement...', what is the answer? Based on the clue '2 word term for a funny treatment of a situation t...', what is the answer? Based on the clue '2 word term for a gathering place where drinks are...', what is the answer? Based on the clue '2 word term for a golf score of 3 under par on a h...', what is the answer? Based on the clue '2 word term for a guide listing the market value o...', what is the answer? Based on the clue '2 word term for a hired underworld assassin', what is the answer?