Related Clues:

• Kind of shower
• Bathroom shower, at times
• One giving house tours
• One who'd like to put you in your place
• A lot may be on one's mind
• One with a lot to offer
• Someone with a lot to show?
• Source of the euphemisms found in the clues for 17-, 23- and 48-Across
• Representative for Buckingham Palace, say?