
1) Nautical terminology
Found on
https://www.crosswordclues.com/clue/harbourmaster

A harbourmaster (or harbormaster, see spelling differences) is an official responsible for enforcing the regulations of a particular harbour or port, in order to ensure the safety of navigation, the security of the harbour and the correct operation of the port facilities. ==Responsibilities== Harbourmasters are normally responsible for issuing loc...
Found on
http://en.wikipedia.org/wiki/Harbourmaster
No exact match found.