"Yeah I know that I let you down, is it too late to say I'm sorry now?"
Justin Bieber
Legendary rising bird
Phoenix
You'll find "late" in the middle of this word you use when you wish someone happy birthday the day after
Belated
Regular brushing can help prevent this inflammation of the gums
Gingivitis
From the Greek for "rival", it's the main character working against the hero or heroine
Antagonist
"Are we out of the woods yet? Are we out of the woods yet? Are we out of the woods yet?"
Taylor Swift
A later apostle
St. Paul
Many schools have policies against being this 5-letter late word
Tardy
During a 1721 epidemic in Boston, Zabdiel Boylston gave the 1st Amer. inoculations against this now-eradicated disease
Smallpox
It means "all knowing" & refers to a narrator who knows what all the characters do & think
Omniscient
"I'm so sick of that same old love, my body's had enough"
Selena Gomez
On "The Simpsons" it comes between C. & Burns
Montgomery
It's the usual adjective for a library book that's not been returned on time
Overdue
Coumadin & heparin are in this class of drugs whose name means that they thin your blood
Anticoagulants
It's the final outcome of the conflict in a story, or a plan made on New Year's
Resolution
"And they say she's in the Class A team, suck in her daydream, been this way since 18"
Ed Sheeran
Ancient Greek site of athletic fame
Olympia
Just like former House Majority Leader Tom's last name, you could have been beset by one of these
Delay
DAILY DOUBLE!
Creutzfeldt-Jakob disease is the human form of this "beastly bovine" affliction
David Foster Wallace used way more of these than most novelists, calling them "a second voice in your head"
Footnotes
"This is my fight song, take back my life song"
Rachel Platten
A Plains-dwelling Native American tribe
Cheyenne
A restaurant worker who's falling behind is said to be "in" these garden annoyances
The weeds
Bright's disease is an inflammation in these organs
Kidneys
It can mean a decorative border of vines, or, in literature, a short anecdote
Vignette