This great jazz singer was the daughter of jazz guitarist Clarence Holiday
Billie Holiday
Beer barrel
(3) 
keg
This rhyming word refers to any time of great success, not a specific 24-hour period
heyday
Harold Arlen & Yip Harburg wrote this classic tune sung by the Scarecrow in "The Wizard of Oz"
"If I Only Had A Brain"
In UFO, possibly an alien craft
unidentified
This former Secretary of Transportation is known to her friends as Liddy
Elizabeth Dole
Work the dough
(5) 
knead
A hand-held optical instrument lends its name to this adjective referring to a mix of shifting colors
a kaleidoscopic
In computer programming, this 2-word "statement" means that when a specific condition is met, a specific action follows
if-then
In SCUBA
underwater
(Self Contained Underwater Breathing Apparatus)
Dr. Mathilde Krim is renowned for her efforts to find a cure for this epidemic disease
AIDS
Soviet shoe banger
(10) 
Khrushchev
"O" is for this unfriendly word; in ancient Greece, it was a way to vote you out of the community
ostracize
In "Field of Dreams", Kevin Costner first hears this phrase while walking through his corn
If you build it, he will come
In the government department HUD
Urban
(Department of Housing and Urban Development) 
Vigdis Finnbogadottir, this country's 1st female president, has held office since 1980
Iceland
Michigan gal's town
(9) 
Kalamazoo
Latin loqui, "to speak", gives us the words loquacious, meaning talkative, & this adjective, meaning well spoken
eloquent
The Department of Homeland Security designates Sept. 25 as awareness day for this 6-word reminder to report suspicious activity
If you see something, say something
In the ACLU
Union
(American Civil Liberties Union)
This Austrian-born woman known for her family singers was named Catholic mother of year in 1957
Maria (von) Trapp
Patellar reflex
(4,4) 
knee jerk
Adventurous artists are described by this hyphenated French word, which used to refer to the leading body of an army
avant-garde
In a rousing 1765 Patrick Henry speech criticizing Britain, these 4 words preceded "make the most of it"
if this be treason
In the committee known as HUAC
Un-American
(House Un-American Activities Committee)