Ah, I just can't get these.....13a fragrant essntial oil....C???O?E?L? 19a Colourless volatile substance and organic compound.... ?C?T?L....29a Celestial body composed of ice, dut and rocks ... ?O?E?.....45a Greyish-brown fuzzy beetle (4,6)...?O?L?E???L...48a Historical name for a soldier of the British army .... W?D???T....51a Country in North Africa with and white flag .... R?N???A