Answer: kneepants

AnswerCrossword Clue
KNEEPANTSAttire symbolizing boyhood
KNEEPANTSSymbol of boyhood
KNEEPANTSBermudas
KNEEPANTSOld-fashioned duds
KNEEPANTSOld lad's wear
KNEEPANTSAttire for Little Lord Fauntleroy
KNEEPANTSGarb symbolizing youth
KNEEPANTSQuaint school togs
KNEEPANTSPart of a hammer left in philosopher's knickers (4,5)
KNEEPANTSPlus fours
KNEEPANTSBoys' wear, once
KNEEPANTSBermudas of old
KNEEPANTSKnickerbockers.
KNEEPANTSCostume for Muggsy Buttons.
KNEEPANTSOld-fashioned boy's trousers
KNEEPANTSYouthful attire
KNEEPANTSQuaint trousers
KNEEPANTSQuaint school attire
KNEEPANTSOld-fashioned boys' trousers
KNEEPANTSLittle Lord Fauntleroy feature