Married with a ring while still in debt (4)
I believe the answer is:
owed
'while still in debt' is the definition.
I can't tell whether this defines the answer.
'married with a ring' is the wordplay.
'married' becomes 'wed' (wed can mean married).
'with' means one lot of letters go next to another.
'a ring' becomes 'o' (letter resembling a ring).
'wed' put after 'o' is 'OWED'.
Can you help me to learn more?
(Other definitions for owed that I've seen before include "Was obliged to pay" , "(Sum) due for payment" , "to be paid" , "Outstanding" , "Had an obligation to pay" .)