Nurse releasing husband from danger (5)
I believe the answer is:
treat
'nurse' is the definition.
(I've seen this in other clues)
'husband from danger' is the wordplay.
'husband' becomes 'h'.
'from' suggests deleting specific letters.
'danger' becomes 'threat' (threat is a kind of danger).
'threat' with 'h' taken away is 'TREAT'.
'releasing' acts as a link.
This may not be correct. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for treat that I've seen before include "An indulgence; handle" , "Indulgence; deal with" , "Stand a drink" , "Practise medicine" , "Minister - buy one a drink" .)