Firm cutting money desperately makes saving (7)
I believe the answer is:
economy
'saving' is the definition.
(I know that saving can be written as economy)
'firm cutting money desperately' is the wordplay.
'firm' becomes 'co' (abbreviation for company).
'cutting' indicates putting letters inside (some letters cut their way into a word).
'desperately' indicates anagramming the letters.
'money' is an anagram of 'enomy'.
'co' inserted inside 'enomy' is 'ECONOMY'.
'makes' acts as a link.
(Other definitions for economy that I've seen before include "Me coy? No! (anag)" , "See 22" , "Efficient use of resources" , "Financial system" , "Judicious expenditure of money" .)