Call up first wife, having received go-ahead (5)
I believe the answer is:
evoke
'call up' is the definition.
(synonyms)
'first wife having received go-ahead' is the wordplay.
'first wife' becomes 'eve' (wife of Adam in the Bible).
'having received' means one lot of letters goes inside another.
'go-ahead' becomes 'ok' (to OK something is to give it the go-ahead).
'eve' enclosing 'ok' is 'EVOKE'.
(Other definitions for evoke that I've seen before include "Call forth (a response)" , "Call up; elicit" , "Elicit (a response)" , "Awaken memories in the mind" , "Induce" .)