Partner accepting no site free for place to live (10)
I believe the answer is:
maisonette
'place to live' is the definition.
(type of small residence)
'partner accepting no site free' is the wordplay.
'partner' becomes 'mate' (synonyms).
'accepting' means one lot of letters goes inside another.
'free' is an anagram indicator.
'no'+'site'='nosite'
'nosite' is an anagram of 'isonet'.
'mate' placed around 'isonet' is 'MAISONETTE'.
'for' acts as a link.
(Other definitions for maisonette that I've seen before include "starter home?" , "small property" , "Multi-storey apartment" , "Small house, flat" , "possible place to live" .)