Related Clues:

• A one-night musical performance
• A single musical performance - it's a palindrome
• Rule as monarch
• A booking for performers
• Rule as a monarch
• A single performance - a palindrome
• Live performance
• As a rule it does not sound all that fine
• That sounds wet, as a rule
• As a rule it sounds wet
• Mixed around me for 21 across would make it do for a monarch
• As a rule it sounds not so fine
• As a rule it's about a mixed gin
• As a rule this does not sound fine
• Does not sound so fine, as a rule