Answer: obstacle

AnswerCrossword Clue
OBSTACLEHurdle
obstacleA thing that blocks one's way or prevents or hinders progress
obstaclesomething that obstructs
OBSTACLE... course (part of boot camp)
OBSTACLEHurdle, e.g.
OBSTACLEStone wall or glass ceiling, etc.
OBSTACLESomething to be negotiated
OBSTACLERub
OBSTACLEProblem to be overcome
OBSTACLEKind of course
OBSTACLEImpediment
OBSTACLEHurdle or ditch, e.g.
OBSTACLEBarrier.
OBSTACLESomething in the way
OBSTACLERoadblock
OBSTACLEBarrier
OBSTACLEStumbling block
OBSTACLESnag
OBSTACLEIt's in the way