Crossword Clue:

Corridor to be kept clear

AnswerCrossword Clue
FIRELANECorridor to be kept clear
SECRETIt's meant to be kept
INTRUSTPrivately, and to be kept private
TRADESECRETSThings to be kept from competitors.
EAROne might be kept to the ground
TOPIARYIt needs to be kept in shape
SECRETS"... edged tools [to] be kept from children and from fools": Dryden
ARCANELike knowledge that should be kept to a minimum in crossword clues