| Strengthening beam | 18 |
| Straightforward Father's Day gift | 37 |
| Stereotypical Father's Day gift | 35 |
| Status of an unresolved contest, perhaps | 40 |
| Staple of corporate attire | 26 |
| Source of a businessman's power? | 36 |
| Something that may be broken | 28 |
| Sleeper between tracks | 22 |
| Situation in which nobody is up | 31 |
| Situation at the start of the tenth inning | 42 |
| Shoelace | 8 |
| Share first, e.g. | 17 |
| Sentimental link | 16 |
| Senate situation requiring the Vice President | 45 |
| Secure, as shoelaces | 20 |
| Secure, as an apron | 19 |
| Scoreless contest | 17 |
| Score leading to overtime | 25 |
| Score into the 10th | 19 |
| Score ending in "all" | 31 |
| Sandwich bag closer | 19 |
| Robert Plant "___ Dye on the Highway" | 47 |
| Roadbed inset | 13 |
| Requirement in some restaurants | 31 |
| Reason to play more | 19 |
| Reason for OT | 13 |
| Rare Scrabble outcome | 21 |
| Rare NFL game result | 20 |
| Rare NFL game ending | 20 |
| Rare football game ending | 25 |
| Railroad track part | 19 |
| Railroad crossbeam | 18 |
| Railroad __ | 11 |
| Rail underlayment | 17 |
| Race possibility | 16 |
| Queen "___ Your Mother Down" | 38 |
| Push, to blackjack players | 26 |
| Push, in a pit | 14 |
| Push on a casino floor | 22 |
| Precursor to a play-off | 23 |
| Potentially unsatisfying outcome | 32 |
| Potential play prolonger | 24 |
| Possible reason for a rematch | 29 |
| Possible hockey result | 22 |
| Plastic bag closer | 18 |
| Placket coverer | 15 |
| Pin place, perhaps | 18 |
| Part of formal attire for some | 30 |
| Part of a man's formal wear | 31 |
| Overtime producer | 17 |
| Overtime prerequisite | 21 |
| Overtime justification | 22 |
| OT cause | 8 |
| OO | 2 |
| One-one, for one | 16 |
| Old-school item | 15 |
| Office garment | 14 |
| Odd article to wear with a turtleneck | 37 |
| Object often cut in office pranks | 33 |
| Novelty gift with non-standard crossword designs, often | 55 |
| Note connector | 14 |
| NFL rarity | 10 |
| Nearly impossible MLB outcome | 29 |
| National Spelling Bee rarity | 28 |
| N.H.L. impossibility | 20 |
| N.F.L. sudden-death situation | 29 |
| N.F.L. rarity | 13 |
| N.F.L. game rarity | 18 |
| Musical note connector | 22 |
| Mostly impossible MLB outcome | 29 |
| Might finally wear one, to the Grammys | 38 |
| Match, as a record | 18 |
| Match for a pocket handkerchief | 31 |
| Man's formal need | 21 |
| Man's formal accessory | 26 |
| Make, as flies for fishing | 26 |
| Make, as a bow | 14 |
| Make the same points? | 21 |
| Make one to one, perhaps | 24 |
| Make knots in | 13 |
| Make knots | 10 |
| Make a fly | 10 |
| Low shoe with a lace | 20 |
| Knotted count | 13 |
| JT "Suit and ___" | 27 |
| JT "Suit & ___" | 29 |
| Jon Brion "Strings That ___ to You" | 45 |
| Jacket partner | 14 |
| Item with a Windsor knot, maybe | 31 |
| Item of office attire | 21 |
| Item in pop's closet | 24 |
| It's not required for casual Fridays | 40 |
| It's knotworthy? | 20 |
| It's knot-worthy? | 21 |
| It's knot-worthy | 20 |
| It's knot worthy? | 21 |
| It's just a formality | 25 |
| It can lead to a shootout | 25 |
| It can get under your collar | 28 |
| Indecisive outcome | 18 |