Answer: brass

AnswerCrossword Clue
BRASSArmy officials
BRASSTuba or trombone
BRASSChutzpah
BRASSTrumpets and tubas, e.g.
BRASSAudacity
BRASSGeneral assembly?
BRASSHeavy metal
BRASSHeavy metal alloy
BRASSEpitome of boldness
BRASSAlloy of copper and zinc
BRASSMilitary big shots
BRASSPentagon people, informally
BRASSMilitary leaders
BRASSTubas and such
BRASSMilitary group
BRASSSource of many orders
BRASSLeadership
BRASSMilitary officials
BRASSImpudence
BRASSMetallic alloy
brasshigh-ranking officials
BRASSVery important people
BRASSHigh-ranking military officers
BRASSMilitary material?
BRASSSelf-assurance
BRASSMarching band, largely
BRASSOrchestra section
BRASSEffrontery
BRASSHigher-ups
BRASSMilitary bigwigs
BRASSBase runners?
BRASSCopper and zinc alloy
BRASSBigwigs
BRASSOfficials
BRASSSection in a pit
BRASSType of band
BRASSMilitary honchos
BRASSUpstairs group
BRASSGroup giving orders
BRASSTrumpets and trombones, e.g.