For the mother and son in trouble, providing a home (7)
I believe the answer is:
mansion
'trouble providing a home' is the definition.
I can't tell whether this definition defines the answer.
'for the mother and son in' is the wordplay.
'for' becomes 'i' (I can't explain this - if you can you should believe this answer much more).
'the mother' becomes 'ma' (ma can mean mother).
'and' becomes 'n' (common abbreviation for 'and').
'in' indicates putting letters inside.
'ma'+'n'+'son'='manson'
'i' inserted inside 'manson' is 'MANSION'.
Can you help me to learn more?
(Other definitions for mansion that I've seen before include "large residence" , "Grand house" , "Opulent house" , "Stately home" , "Large building" .)