Answer: nephews

AnswerCrossword Clue
NEPHEWSSons of sisters
NEPHEWSReunion attendees
NEPHEWSBrothers of nieces
NEPHEWSSibling's sons
NEPHEWSMice Morty and Ferdie, to Mickey
NEPHEWSFamily members
NEPHEWSRelations.
NEPHEWSRelatives
NEPHEWS4-Down's brothers
NEPHEWSHuey, Dewey and Louie, to Donald
NEPHEWSOnes who cry uncle?
NEPHEWSSome family members
NEPHEWSRare beneficiaries of royal succession
nephewsNEPHEW, the son of one's brother or sister
nephewsA son of one's brother or sister, or of one's brother-in-law or sister-in-law