It's someone who reveals secrets or informs on others
Tattletale
This scientific instrument records P waves, S waves & surface waves
a Seismograph
This legendary Braves slugger who's first on the all-time RBI list with 2,297 passed away in 2021
Hank Aaron
Type of nose that's short, broad & somewhat turned up
Pug
Al Gore
Bill Clinton
Why, you little one of these! A young cheeky & presumptuous person
Whippersnapper
Castor canadensis is the scientific name for this aquatic rodent
a Beaver
During his career he had a record 14,053 official at-bats; maybe that's why he's also the career hits leader
Pete Rose
Swimming Olympian Mark
Spitz
Spiro Agnew
Nixon
From old words for "one & all", today it means disreputable or undesirable people
riff-raff
Types of joints in the body include hinge, saddle & "ball &" this
Socket
In 1973 & 1974 this California Angels pitcher hurled a total of 750 strikeouts, the most ever in 2 straight years
Nolan Ryan
Manny Pacquiao's occupation; while also true, congressman does not fit the category
Boxer
John Nance Garner
Franklin Roosevelt
Adjective meaning lacking all moral principles
Unscrupulous
On weather maps, isobars are lines that join areas of equal measures of this
Atmospheric Pressure
He is the only player in MLB history to walk more than 200 times in one season; he got 232 free passes in 2004
Barry Bonds
A clothes size once meant for the heavier-than-average boy
Husky
Charles Dawes
Calvin Coolidge
Collective name for strategic measures taken by a nation to discourage hostile action by another
Deterrence
The nuclear research organization CERN has made this stuff & kept it around for 15 minutes, leading to fears of Armageddon
Antimatter
With Negro League stats now part of Major League history, this slugger may claim the title of "last .400 hitter"
Josh Gibson
Nationality-wise it would describe the wonderful Vitus Bering or the super Jorn Utzon
Great Dane
Charles Curtis
Hoover