Friendly talk about the French house (6)
I believe the answer is:
chalet
'house' is the definition.
(I know that chalet is a type of house)
'friendly talk about the french' is the wordplay.
'friendly talk' becomes 'chat' (a chat is a casual conversation).
'about' means one lot of letters goes inside another.
'the french' becomes 'le' ('the' in French).
'chat' going around 'le' is 'CHALET'.
(Other definitions for chalet that I've seen before include "holiday accommodation" , "Swiss hut or cottage" , "Originally an alpine cowherd's hut" , "wooden hut" , "holiday property?" .)