Engaged - or already married? (4,2)
I believe the answer is:
tied up
'engaged' is the definition.
(synonyms)
'already married?' is the wordplay.
I cannot really understand how this works, but
'married?' could be 'tied' ('tie' can be a synonym of 'marry') and 'tied' is located in the answer.
The remaining letters 'up' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'or' acts as a link.
Can you help me to learn more?
(Other definitions for tied up that I've seen before include "Secured; engaged" , "Thus prisoner may be kept" , "busy" .)