Barbershop quartets have 4-part harmony & perform this way, an Italian phrase meaning without instrumental accompaniment
a cappella
These sour wild apples are usually less than 2 inches in diameter
crabapples
The origins of this Shakespeare tragedy go back to Ovid's tale of Pyramus & Thisbe
Romeo & Juliet
In the 1940s Raphael Lemkin coined this term for destruction of a group, now a crime under international law
genocide
A catechumen is a student getting the basics of Christianity in this question-&-answer form
catechism
When it's time to pay the barber, Emily post advises sticking with the golden rule: tip this percentage, $6 for a $30 haircut
20%
Appropriately, the Empire apple was introduced in this U.S. state in 1966
New York
Shakespeare provided the first printed appearance of this word, from the Spanish for "lizard"
alligator
The Vienna Conventions codified this principle that protects ambassadors from local prosecution
diplomatic immunity
Rhyming with clasp, it's a clasp for a door or lid that's fastened with a padlock
hasp
In one of opera's best-known arias, this title guy from "The Barber of Seville" sings his own name over & over again
Figaro
The name of this world capital precedes "Beauty" in the name of an apple variety that's excellent for baking
Rome
It's the "earthy" Shakespearean term for the lower-class spectators
groundlings
In case of losses, the 1988 Basel Capital Accord makes banks set aside 8 cents on every dollar they make in these
loans
Spicy-sounding name for the type of comb used to give a horse a good grooming
curry comb
This London street that was the epicenter of British journalism is also the site of some barber-ous murders in a classic musical
Fleet Street
The Jonagold is a hybrid of the Golden Delicious & this red apple variety
Jonathan
Lysander uses the word "bedroom" while trying to convince Hermia to sleep close to him in this comic play
A Midsummer Night's Dream
In 1793, as France & Britain went to war, George Washington proclaimed this status for the U.S.
neutral
This word starting with "T" means "one who does believe in God" (add an A & you'd get one who doesn't)
theist
"Let" us all be glad we no longer visit barbers for this ancient surgical practice, symbolized by the red stripe on modern barber poles
bloodletting
This tart green apple was first cultivated by a certain Australian lady named Maria Ann
Granny Smith
"Men are April when they woo, December when they wed", explains Rosalind in this comedy
As You Like It
The 1919 Treaty of Versailles was this type, from the Latin for "many" & "side"
multilateral
It's a person of great learning in a variety of subjects, though it sounds like only in trig & calculus
polymath