Answer: maintop

AnswerCrossword Clue
MAINTOP

Nautical platform

MAINTOP

Circus tent.

MAINTOP

Platform at the head of a certain mast.

MAINTOP
Platform at the head of a mast.
MAINTOP
Platform on a ship
MAINTOPPlatform on a square-rigged vessel
MAINTOPHigh platform on some sailing ships