Material to stabilise a ship (7)

I believe the answer is:

ballast

'material to stabilise a ship' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for ballast that I've seen before include "Material for railway bed" , "Balloon steadier" , "Heavy material used to stabilise a ship" , "Heavy material for steadying ship" , "Counterweight" .)

I've seen this clue in the Irish Times (Simplex) and The Irish Times.

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.