Talk about the French at Swiss Cottage! (6)
I believe the answer is:
chalet
'swiss cottage' is the definition.
(I've seen this before)
'talk about the french' is the wordplay.
'talk' becomes 'chat' (I've seen this in other clues).
'about' means one lot of letters goes inside another.
'the french' becomes 'le' ('the' in French).
'chat' placed around 'le' is 'CHALET'.
'at' is the link.
(Other definitions for chalet that I've seen before include "wooden hut" , "Originally an alpine cowherd's hut" , "Swiss holiday home" , "Swiss hut or cottage" , "Swiss summer hut" .)