Stop travelling overseas (5,2)

I believe the answer is:

heave to

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'stop' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

(Other definitions for heave to that I've seen before include "(Of a sailing vessel) stop moving" , "Of ship, stop without anchoring or mooring" , "come to a stop for navy" , "stop at sea" .)

I've seen this clue in The Times and The Sunday Times.

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