Tie the knot (3)
'tie the knot' is the definition.
(to tie the knot can mean to marry)
This is the entire clue.
(Other definitions for wed that I've seen before include "Took in marriage" , "Marry" , "Married" , "Espouse" , "Join" .)
'tie the knot' is the definition.
(tie the knot can mean to get married)
This is all the clue.
(Other definitions for marry that I've seen before include "expression of surprise once" , "Get hitched" , "Gain a wife or husband" , "Well I never!" , "Unite; gosh! (arch.)" .)