Possible Clues:

• In memory of English detective from The Wire, the central character for Hitchcock
• It's usually written to one unable to read it
• Words inscribed on tomb
• What about pious exploit for lapidary phrases
• Inscription on a gravestone
• Final puff from stovepipe hat
• Sound of rain at leaving an inscription in what provides the final tribute
• 'Everybody loves somebody sometime,' for Dean Martin
• 'The best is yet to come,' for Frank Sinatra
• A grave, but positive review