| 'Carmen,' for one | 25 |
| 'Aida' is one | 21 |
| 'Aida,' e.g. | 20 |
| ''Turandot,'' for one | 37 |
| ''The Magic Flute'', e.g. | 41 |
| ''The Magic Flute,'' e.g. | 41 |
| ''The Barber of Seville,'' e.g. | 47 |
| ''Rigoletto'', for one | 38 |
| ''Porgy and Bess,'' for one | 43 |
| ''Otello'', for one | 35 |
| ''Norma'' for one | 33 |
| ''Nixon in China'', e.g. | 40 |
| ''Lulu'' or ''Norma'' | 53 |
| ''Fidelio'' was Beethoven's only one | 56 |
| ''Fidelio'' is one | 34 |
| ''Fidelio'' for one | 35 |
| ''Fidelio,'' for one | 36 |
| ''Faust'' or ''Don Giovanni'' | 61 |
| ''Faust,'' for one | 34 |
| ''Ernani,'' e.g. | 32 |
| ''Einstein on the Beach,'' e.g. | 47 |
| ''Carmen'' or ''Aida'' | 54 |
| ''Carmen,'' e.g. | 32 |
| ''Ada'', for one | 32 |
| ___ hats | 8 |
| ___ bouffe | 10 |
| In working order | 16 |
| In working condition | 20 |
| In working order, as a vending machine | 38 |
| Fit for use | 11 |
| Capable of performing | 21 |
| Surgeon's favorite word? | 28 |
| Like tumors, hopefully | 22 |
| "The Barber of Seville", e.g. | 39 |
| "Marriage of Figaro", e.g. | 36 |
| Collapsible headgear | 20 |
| Collapsible topper | 18 |
| Tall topper | 11 |
| Topper for the Met | 18 |
| Theatergoer's collapsible topper | 36 |
| Tall silk topper | 16 |
| Silk topper | 11 |
| Part of a Met fan's outfit? | 31 |
| Part of a Met fan's outfit | 30 |
| Met wear, perhaps | 17 |
| Met fan's accessory | 23 |
| Cutaway accompaniment | 21 |
| Collapsible silk topper | 23 |
| Collapsible lid | 15 |
| Collapsible chapeau | 19 |
| Formal headgear for men | 23 |
| Silk toppers | 12 |
| Some magicians' gear | 24 |
| Collapsible items | 17 |
| Mathematical quantity | 21 |
| What's acted on in math | 27 |
| Target of a mathematical process | 32 |
| Quantity on which a math operation is performed | 47 |
| Part of an equation, in math | 28 |
| Part of an equation | 19 |
| Mathematical quantity acted upon | 32 |
| Equation quantity | 17 |
| Either 2 in 2 + 2 = 4, in math | 30 |
| Divisor, e.g. | 13 |
| Dividend, mathematically | 24 |
| Donizetti works | 15 |
| Met shows | 9 |
| "Norma" and "Martha" | 40 |
| Verdi works | 11 |
| Met productions | 15 |
| Wagner works | 12 |
| Covent Garden offerings | 23 |
| Musical dramas | 14 |
| La Scala shows | 14 |
| La Scala productions | 20 |
| Gluck works | 11 |
| "Don Giovanni" and "Don Pasquale" | 53 |
| Puccini products | 16 |
| Puccini productions | 19 |
| Met requirements? | 17 |
| La Scala offerings | 18 |
| "Carmen" and "Norma" | 40 |
| Verdi output | 12 |
| Verdi creations | 15 |
| They're on the Met schedule | 31 |
| They require libretti | 21 |
| Some reasons for glasses | 24 |
| Some dramas set to music | 24 |
| Some are grand, some are light | 30 |
| Puccini works | 13 |
| Price venues | 12 |
| Musical shows | 13 |
| Met offerings | 13 |
| Gluck products | 14 |
| Bellini creations | 17 |
| "Norma" and "Don Carlo" | 43 |
| "Fidelio" and "Orfeo ed Euridice" | 53 |
| "Falstaff" and "Fidelio" | 44 |
| Zarzuelas, e.g. | 15 |
| Vehicles for Price and Bumbry | 29 |