Adultery in the morning, time husband leaves (5)
I believe the answer is:
amour
'adultery' is the definition.
(thesaurus)
'morning time husband leaves' is the wordplay.
I cannot quite see how this works, but
'morning' could be 'am' (as in 12:00 AM) and 'am' is present in the answer.
The remaining letters 'our' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'in the' acts as a link.
Can you help me to learn more?
(Other definitions for amour that I've seen before include "illicit liaison" , "Romantic affair" , "close relationship" , "Love-affair" , "Love affair - loved one" .)