To get out of debt again, show a profit (5)
I believe the answer is:
repay
'to get out of debt' is the definition.
(I've seen this in another clue)
'again show a profit' is the wordplay.
'again' becomes 're'.
'show a profit' becomes 'pay' (I've seen this in another clue).
're'+'pay'='REPAY'
(Other definitions for repay that I've seen before include "Settle a score" , "Quite old" , "Do or give in return" , "recompense" , "Return money borrowed" .)