Possible Clues:

• One-third of gamblers run off with the last of the winnings from bookmakers
• Makes an impression
• Frightful misprint for bookmakers
• Publisher's product lines
• 'One's royalty!', we hear (from Charles perhaps -- performing impressions?)
• Stamps showing emperor raised fuss about nothing at first
• One married type's impressions
• Makes 'im sound royal if one stamps on 'im