Economic ruin? Company lost receipts! (6)
I believe the answer is:
income
'receipts' is the definition.
(thesaurus)
'economic ruin? company lost' is the wordplay.
I cannot really see how this works, but
'company' could be 'co' (abbreviation) and 'co' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for income that I've seen before include "What do you make" , "Salary" , "Remunerations, takings" , "Money gained from work or investment" , "Coin me! (anag)" .)