| Onion covering | 14 |
| Onion cover | 11 |
| Onion cousins | 13 |
| Onion cousin | 12 |
| Onion chopper, e.g. | 19 |
| Onion byproducts | 16 |
| Onion bit? | 10 |
| Onion bagel alternative | 23 |
| Onion and tulip | 15 |
| Onion and red | 13 |
| Onion and leek relative | 23 |
| Onion and garlic relatives | 26 |
| Onion | 5 |
| Onigiri need | 12 |
| Ongoing TV show | 15 |
| Ongoing trouble | 15 |
| Ongoing story | 13 |
| Ongoing squabble | 16 |
| Ongoing saga | 12 |
| Ongoing quarrels | 16 |
| Ongoing quarrel | 15 |
| Ongoing NYC tribute project where musicians cover the works of other musicians | 78 |
| Ongoing monotone | 16 |
| Ongoing inability to connect, in a way | 38 |
| Ongoing hostility | 17 |
| Ongoing entertainment | 21 |
| Ongoing drama | 13 |
| Ongoing dispute about chemical use in farming? | 46 |
| Ongoing confusion? | 18 |
| Ongoing auction site | 20 |
| Ongoing argument | 16 |
| Ongoing accounting fig. | 23 |
| OneZip bag maker | 16 |
| Onetime, old style | 18 |
| Onetime Yugoslavian | 19 |
| Onetime Yugoslav chief | 22 |
| Onetime Yes label | 17 |
| Onetime XFL game airer | 22 |
| Onetime Wrigley Field slugger Sammy | 35 |
| Onetime Wrigley Field favorite | 30 |
| Onetime wrestling great ___ the Giant | 37 |
| Onetime World Cup star | 22 |
| Onetime Wisconsin-based insurance giant | 39 |
| Onetime winner of all the awards in this puzzle's theme | 59 |
| Onetime Winfrey rival | 21 |
| Onetime wild place? | 19 |
| Onetime White House resident with a cleft palate | 48 |
| Onetime White House resident | 28 |
| Onetime White House pooch | 25 |
| Onetime White House nickname | 28 |
| Onetime White House monogram | 28 |
| Onetime White House inits. | 26 |
| Onetime White House family | 26 |
| Onetime White House daughter | 28 |
| Onetime West Bank leader | 24 |
| Onetime West African kingdom | 28 |
| Onetime weight-loss drug | 24 |
| Onetime Vogue photographer | 26 |
| Onetime Virginia V.I.P.'s | 29 |
| Onetime VHS rival | 17 |
| Onetime V.P. John ___ Garner | 28 |
| Onetime urgent mail service | 27 |
| Onetime Universal Studios owner | 31 |
| Onetime United rival | 20 |
| Onetime UN power | 16 |
| Onetime Ugandan leader | 22 |
| Onetime U.N. leader | 19 |
| Onetime U.N. effort site | 24 |
| Onetime U.A.R. member: Abbr. | 28 |
| Onetime U.A.R. member | 21 |
| Onetime TWA rival | 17 |
| Onetime TWA competitor | 22 |
| Onetime TV music vendor | 23 |
| Onetime TV landlord | 19 |
| Onetime TV judge | 16 |
| Onetime Turkish governors | 25 |
| Onetime Trump | 13 |
| Onetime Trooper and Rodeo maker | 31 |
| Onetime tribe of the Winnebago nation | 37 |
| Onetime tribe of the Upper Midwest | 34 |
| Onetime transit | 15 |
| Onetime track star now in Parliament | 36 |
| Onetime Toyota model | 20 |
| Onetime town VIPs | 17 |
| Onetime Toronado, e.g., informally | 34 |
| Onetime Tom Brokaw co-anchor | 28 |
| Onetime tin hat wearer | 22 |
| Onetime Time film critic James | 30 |
| Onetime Time competitor, briefly | 32 |
| Onetime throne occupier | 23 |
| Onetime Texas rice grower of note | 33 |
| Onetime Texaco rival | 20 |
| Onetime Texaco competitor | 25 |
| Onetime tenth month | 19 |
| Onetime telejournalist Garrick | 30 |
| Onetime telecom giant | 21 |
| Onetime Teheran ruler | 21 |
| Onetime teen idol who later hosted "Pyramid" | 54 |
| Onetime teen idol Paul | 22 |
| Onetime teen idol Corey | 23 |