Embark on a voyage (3,4)

I believe the answer is:

set sail

'embark on a voyage' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for set sail that I've seen before include "Leave for (sea) voyage" , "Begin a voyage" , "Leave port (by ship)" , "have started journey" , "left land behind" .)

I've seen this clue in the Universal.

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