Trouble is generated about money — producing this? (12)
I believe the answer is:
disagreement
'this?' is the definition.
The definition suggests a singular noun which matches the answer.
'trouble is generated about money' is the wordplay.
'trouble' indicates anagramming the letters.
'about' means one lot of letters goes inside another.
'money' becomes 'm' (abbreviation in economics).
'is'+'generated'='isgenerated'
'isgenerated' anagrammed gives 'disagreeent'.
'disagreeent' placed around 'm' is 'DISAGREEMENT'.
'producing' is the link.
(Other definitions for disagreement that I've seen before include "Difference of opinion" , "Contretemps" , "Quarrel" , "Lack of consensus" , "Conflict" .)