Answer:

DAFT

AnswerCrossword Clue
DAFTLoopy
DAFTOff one's rocker
DAFTWacky
DAFTBalmy
DAFTMad
DAFTFoolish
DAFTA little loopy
DAFTNot all there
DAFTTouched
DAFTAddlebrained
DAFTKooky
DAFTA little batty
DAFTGoofy
DAFTSlightly nutty
DAFTBonkers
DAFTSenseless
DAFTTouched in the head
DAFTBats
DAFTBananas
DAFTCrazy
DAFTA bit loopy
DAFTOff your rocker
DAFTCrackers
DAFTNutty
DAFTLoony
DAFTBatty
DAFTA bit cuckoo
DAFTInane
DAFTBarmy
DAFTBughouse
DAFTSilly
DAFTDotty
DAFTMoonstruck
DAFTMuddleheaded
DAFTScatterbrained
DAFTA tad mad
DAFTAround the bend
DAFTHalf-witted
DAFTInsane
DAFTImbecile.