The Clue
Runner of an experiment? (3 letter answer)
The Answer
RAT
Tags
Notes
The answer RAT is very common and appears about once every 44 puzzles.
Related Clues
Betray, with "on"
Contemptible one
Deserter
Fink (on)
Hairpiece
Informer
Judas
Nibbler
Scoundrel
Sing
Snitch
Squeal
Squeal (on)
Squeal on
Stoolie
Tattle (on)
Tattletale
Tell (on)
Blab to the cops
Blow the whistle (on)
Cellar dweller
Dirty dog
Double-crosser
Kind of trap
Landfill visitor
One living in a dump
Marmot's kin
No-goodnik
Pack or desert
Ship deserter
Squeal or squealer
Stool pigeon
Unpopular mobster
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Bewhiskered trash collector
"Brother ___," 1938 film
Hardly a good friend
Kind of race or hole
Lab maze runner
Mouse's big cousin
Sinking ship's deserter
Sinking ship's evacuee
Definition
RAT as a noun:
1. any of various long-tailed rodents similar to but larger than a mouse
2. (scab, strikebreaker, blackleg, rat) = someone who works (or provides workers) during a strike
3. (rotter, dirty dog, rat, skunk, stinker, stinkpot, bum, puke, crumb, lowlife, scum bag, so-and-so, git) = a person who is deemed to be despicable or contemptible; "only a rotter would do that"; "kill the rat"; "throw the bum out"; "you cowardly little pukes!"; "the British call a contemptible person a `git'"
4. (informer, betrayer, rat, squealer, blabber) = one who reveals confidential information in return for money
5. a pad (usually made of hair) worn as part of a woman's coiffure
RAT as a verb:
1. desert one's party or group of friends, for example, for one's personal advantage
2. employ scabs or strike breakers in
3. (fink, scab, rat, blackleg) = take the place of work of someone on strike
4. give (hair) the appearance of being fuller by using a rat
5. catch rats, especially with dogs
6. (denounce, tell on, betray, give away, rat, grass, shit, shop, snitch, stag) = give away information about somebody; "He told on his classmate who had cheated on the exam"