Some finish — with two languages? (6,6)
I believe the answer is:
french polish
'some finish' is the definition.
(finish of furniture say)
'with two languages?' is the wordplay.
'two languages?' means two substitutions for 'language'.
'with' says to put letters next to each other.
'language' becomes 'french' (French is an example).
'language' becomes 'Polish'.
'french' next to 'polish' is 'FRENCH-POLISH'.
(Other definitions for french polish that I've seen before include "Glossy varnish for wood" , "buff with this" , "gloss? - with 14a" , "Shine" , "finish" .)