Horse racing's biggest trio of events that the queen only wears on special occasions
Triple Crown Jewels
In 1796, to fight smallpox, Edward Jenner successfully used these, from the Latin for "cow"
vaccines
This, this, this Greek letter, gently down the clue; it was "resh" in the Phoenician alphabet, now it's there for you
rho
Enjoy this beverage in a shop, house or klatch
coffee
Fuzzy freestone fruit (5)
peach
Night sack for a snoozing Boy Scout that's the set of skills available to someone like a magician
a sleeping bag of tricks
In 1620, Spanish priest Juan Pablo Bonet published the first book about this type of communication for the deaf
sign language
Revelation 1:8 states, "I am" these 2 Greek letters, "the beginning and the ending", which really covers things
alpha & omega
It's the woodwind instrument seen below
bassoon
South American cloak (6)
poncho
Snoopy's owner who's a large forest-dwelling ursine creature
Operation Big Switch, involving the exchange of thousands of these people, was a key to the agreement ending the Korean War
prisoners of war
If you don't know it's the 2nd-to-last letter in the Greek alphabet, you'll let out a heavy one (with a different spelling)
psi
Destitute, to the point of having no cents of your surroundings
penniless
Square, rectangle or rhombus (13)
parallelogram
Celestial body of extremely intense gravity that scores an ace in golf
a black hole in one
[DD]
This structure fell on November 9, 1989, symbolically bringing an end to the political division between East & West
the Berlin Wall
[DD]
It's basic math! This is celebrated every March 14th
pi
Occupationally, it's someone who fells trees
A woodcutter
Stolen, like the "Letter" in an Edgar Allan Poe story (9)
purloined
18th century Prussian king & military genius who is a large body of water in northern Utah
Frederick the Great Salt Lake
A fundamental shift in government policy starting in 1990 led to the end of this policy of discrimination in South Africa
apartheid
If Sophocles signed his name, he'd begin by writing this letter
sigma
As a verb, it means to support; in architecture, it's an external prop made to steady a structure
buttress
Social outcast (6)
a pariah