Answer: hardhat

AnswerCrossword Clue
HARDHATConstruction-site headgear
hardhatan obstinately conservative person
HARDHATProtection with a suspension to lessen impact
HARDHATOne building buildings?
HARDHATConstruction worker, in slang
HARDHATHelmet
HARDHATHe's on the beam!
HARDHATConstruction site wear
HARDHATBuilding-site topper
HARDHATConstruction worker's protection
HARDHATRiveter's topper
HARDHATOne building buildings
HARDHATConstruction site headgear
HARDHATConstruction worker
HARDHATConstruction site sight
HARDHATConstruction zone necessity
HARDHATUltraconservative