Answer: weasel

AnswerCrossword Clue
WEASEL

It may go "pop"

WEASEL

Sneak

WEASEL

Mink or ermine

WEASEL
Underhanded sort
WEASEL
Ermine, for one
WEASELCritter in a pop song?
WEASELSneaky sort
WEASELDeceitful sort
WEASELSneaky type
WEASELMink relative
WEASELPopper of song
WEASELCop (out)
WEASELNoted popper
WEASELCunning sort
WEASELOtter's kin
WEASELUntrustworthy sort
WEASELAnimal in a pop song?
WEASELFerret's cousin
WEASEL... words (equivocation)
WEASELStool pigeon
WEASELFerret, stoat or ermine
WEASELNursery rhyme popper
WEASELStoat relative
WEASELMink cousin
WEASEL"The Wind in the Willows" character
WEASELPop performer?
WEASELSkunk relative
WEASEL"Pop goes" critter
WEASELSneaky one
WEASELUntrustworthy one
WEASELUnderhanded one
WEASELUntrustworthy person
WEASELStoolie
WEASELIt goes pop
WEASELU. S. Army's new Cargo Carrier M-29.
WEASELMinklike mammal.
WEASELAnimal in an American folk song.
WEASELMilitary snow tractor.
WEASELThe "pop" animal.
WEASEL"The monkey chased the ...."