| Letter that rhymes with its two successors | 42 |
| Letter that rhymes with a colour | 32 |
| Letter that requires clicking, not licking | 42 |
| Letter that originally represented an ox head | 45 |
| Letter that might include an emoticon | 37 |
| Letter that might go through a filter | 37 |
| Letter that looks the same upside down | 38 |
| Letter that looks like a pitchfork | 34 |
| Letter that looks like a horseshoe | 34 |
| Letter that doesn't need a stamp | 36 |
| Letter that comes before upsilon | 32 |
| Letter that can't form words? | 33 |
| Letter that appears 28 times in this grid | 41 |
| Letter switched to ess in this puzzle's theme | 49 |
| Letter successor, to a large degree | 35 |
| Letter smuggled past prison censors | 35 |
| Letter similar to a German Eszett | 33 |
| Letter shaped like an upside-down U | 35 |
| Letter seen twice in Philadelphia | 33 |
| Letter resembling an ox's head | 34 |
| Letter resembling an inverted "V" | 43 |
| Letter prevalent in Mississippi? | 32 |
| Letter permitting a cleric to transfer | 38 |
| Letter pair in ''pummel'' | 41 |
| Letter on the AutoSum button in Excel | 37 |
| Letter on some college sweatshirts | 34 |
| Letter on some campus sweatshirts | 33 |
| Letter often written by Rhodes scholars? | 40 |
| Letter in a mysterious inscription | 34 |
| Letter in "walk" and "talk" | 47 |
| Letter hidden where you might forget to wash? | 45 |
| Letter halfway between alpha and nu | 35 |
| Letter from an unmarried female? | 32 |
| Letter for which a curve is named | 33 |
| Letter encl. to facilitate a reply | 34 |
| Letter carriers' assignments | 32 |
| Letter carriers in "Harry Potter" | 43 |
| Letter carrier's assignment: Abbr. | 38 |
| Letter between whiskey and foxtrot, maybe | 41 |
| Letter between two rhyming letters | 34 |
| Letter between two others that rhyme with it | 44 |
| Letter between sierra and uniform | 33 |
| Letter between Quebec and Sierra | 32 |
| Letter between Delta and Foxtrot | 32 |
| Letter between "kay" and "em" | 49 |
| Letter before Peter in old radio lingo | 38 |
| Letter before Peter in an old phonetic alphabet | 47 |
| Letter before Peter in a phonetic alphabet | 42 |
| Letter before lima in the NATO phonetic alphabet | 48 |
| Letter before kappa, alphabetically | 35 |
| Letter before eme in the Spanish alphabet | 41 |
| Letter before Beta in a society's name | 42 |
| Letter announcing a switch to Toro? | 35 |
| Letter after sierra, in radio lingo | 35 |
| Letter after Quebec in a radio alphabet | 39 |
| Letter after Juliet in a phonetic alphabet | 42 |
| Letter after elle in the Spanish alphabet | 41 |
| Letter after Beta in a society's name | 41 |
| Lets the fingers do the talking? | 32 |
| Lets out, as Festivus grievances | 32 |
| Lets everyone know one's asleep | 35 |
| Lets a ground ball go through one's legs, say | 49 |
| Leto of "My So-Called Life" | 37 |
| Lethally poisoned ruler, familiarly | 35 |
| Lethal weapons in "The Birds" | 39 |
| Let's hope no one fixes yours | 33 |
| Let's have some champagne . . . | 35 |
| Let's get ---! (Let's go!) | 34 |
| Let ___ (decline to take action) | 32 |
| Let ___ (bettor's expression) | 33 |
| Let the mind believe what it likes | 34 |
| Let the host know if you're coming | 38 |
| Let the gas out after filling up? | 33 |
| Let the chips fall where they may | 33 |
| Let stand, in editorial parlance | 32 |
| Let someone know you're interested | 38 |
| Let someone else have your warding-off job? | 43 |
| Let out one's emotions, maybe | 33 |
| Let out --- (bellow like a lion) | 32 |
| Let one's hair down, in a way | 33 |
| Let one's fingers do the talking | 36 |
| Let one know you're interested | 34 |
| Let me make one thing perfectly clear," e.g. | 49 |
| Let Justin take care of everything? | 35 |
| Let insults roll off one's back | 35 |
| Let baby oinkers out of their cages? | 36 |
| Let a transcendental author speak his mind? | 43 |
| Lestrade of Sherlock Holmes stories, e.g. | 41 |
| Lester of The Foggy Mountain Boys | 33 |
| Lessons for a certain band member? | 34 |
| Lesson taught at the end, sometimes | 35 |
| Lesson #5: O'Brien's predecessor | 40 |
| Lesson #4: It's Saturday Night! | 35 |
| Lesson #4: "Blithe Spirit" playwright | 47 |
| Lesson #3: For you and your honey | 33 |
| Lesson #2: Masked man of early TV | 33 |
| Lesson #2: Attendance not required | 34 |
| Lesson #1: For early risers only | 32 |
| Lesson #1: 1977 Scott Turow book | 32 |
| Lesser-seen bills, thanks to ATMs | 33 |