Answer:

ONEA

AnswerCrossword Clue
ONEADraft status
ONEADraftable
ONEATop-drawer
ONEA..-Day (vitamin brand)
ONEADraft rating
ONEAEligible, to the SSS
ONEAReally eligible
ONEASuper-rating
ONEATop of the line
ONEAFit to serve
ONEAVery draftworthy
ONEA4-F antithesis
ONEA..-Day vitamins
ONEA...-Day vitamins
ONEASuper's apartment, perhaps
ONEAPrime draft status
ONEASelective Service System class
ONEAFit for duty
ONEALiable to be called
ONEAService status
ONEASSS classification
ONEAReady for drafting
ONEAPrime for drafting
ONEAGood for drafting
ONEA.. day (quotidian)
ONEAFit to be drafted
ONEADraftable status
ONEAFit for service
ONEADraft classification
ONEAGood to go, to the SSS
ONEASuited to serve
ONEAFit for drafting
ONEADraft selection
ONEA... Day (vitamin brand)
ONEAArmy-ready
ONEASuitable for induction, in a way
ONEADraft category
ONEAEminently draftable
ONEAMost eligible for service
ONEAMost eligible, to the SSS