Crossword Genius

Shipping line (8)

Ross

I believe the answer is:

plimsoll

I'm a little stuck... Click here to teach me more about this clue!

This clue might be a double definition.

'shipping' is the first definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's an association between them I don't understand?

'line' is the second definition.
(I know that Plimsoll is a type of waterline)

Can you help me to learn more?

(Other definitions for plimsoll that I've seen before include "Mark on ship's side to indicate limit of loading" , "Pump social reformer" , "Shipping legislator" , "footwear?" , "Sports shoe; a line" .)

I've seen this clue in The Globe and Mail.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.