Generous to provide new chair with other furniture item (10)
I believe the answer is:
charitable
'generous' is the definition.
(associated in meaning)
'new chair with other furniture item' is the wordplay.
I cannot really understand how this works, but
an anagram of 'chair' is 'chari' which is within the answer.
'furniture' could be 'table' (table is a kind of furniture) and 'table' is present in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
'to provide' is the link.
Can you help me to learn more?
(Other definitions for charitable that I've seen before include "Thoughtful" , "Kind" , "Philanthropic" , "Kindly, given to good works" , "Benevolent" .)