Answer: hatters

AnswerCrossword Clue
HATTERSMilliners
HATTERSMad ones?
HATTERSPillbox creators
HATTERSChapeau vendors.
HATTERSSubjects of Carroll and Cronin.
HATTERSRelatives of haberdashers.
HATTERSWorkers in haberdasheries.
HATTERSSellers of stetsons.
HATTERSAlice's host and others.
HATTERSBusy businessmen before Easter
HATTERSThey may be mad
HATTERSChapeau specialists
hattersmaker or seller of hats
hattersperson who lives alone in the bush, as a herder or prospector
hattersperson who has become eccentric from living alone in a remote area