Is least disposed to leave the shore (3,4)

I believe the answer is:

set sail

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'leave the shore' is the definition.
'set sail' can be an answer for 'leave' (I've seen this before). I am not certain of the 'the shore' bit.

'is least disposed' is the wordplay.
'disposed' indicates an anagram.
'is'+'least'='isleast'
'isleast' is an anagram of 'SET SAIL'.

'to' is the link.

Can you help me to learn more?

(Other definitions for set sail that I've seen before include "Left port" , "Leave for (sea) voyage" , "Embark on a voyage by ship" , "Leave port (by ship)" , "left land behind" .)

I've seen this clue in The Globe and Mail and The Irish News.

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