Give a name to debts that are questionable (7)
I believe the answer is:
dubious
'are questionable' is the definition.
('dubious' can be similar in meaning to 'questionable')
'give a name to debts' is the wordplay.
'give' is a charade indicator (letters next to each other).
'a name' becomes 'dub' (**).
'to debts' becomes 'ious'.
'dub' next to 'ious' is 'DUBIOUS'.
'that' acts as a link.
(Other definitions for dubious that I've seen before include "unreliable" , "Morally suspect" , "Uncertain - suspect" , "Doubtful, uncertain" , "Ambiguous or suspect" .)