Night in France breaks into any kind of income (7)
I believe the answer is:
annuity
'kind of income' is the definition.
The answer and definition can be both related to property as well as being singular nouns.
Maybe there's an association between them I don't understand?
'night in france breaks into any' is the wordplay.
'night in france' becomes 'nuit' ('night' in French).
'breaks into' indicates putting letters inside (inserted letters break into the word).
'nuit' put within 'any' is 'ANNUITY'.
Can you help me to learn more?
(Other definitions for annuity that I've seen before include "Pension investment" , "Sum paid yearly" , "Yearly allowance" , "regular payment" , "Pension arrangement" .)