Possible Clues:

• Coming down from being monarch, say
• Pouring
• Soundly controlling falling water
• Showering
• With 41-Across, title for this puzzle
• Sounds as if on the throne it's so wet
• Hardly spitting if in front of 27 15, 4 26 down and 17 3, 19
• With water falling from the sky
• Coming down as a monarch, we hear,
• Working out -- temperature's boosted -- showering