A label on the French pieces of furniture (6)
I believe the answer is:
tables
'pieces of furniture' is the definition.
(I've seen this before)
'a label on the french' is the wordplay.
'a label' becomes 'tab' (I've seen this before).
'on' says to put letters next to each other (in a down clue, letters appear on others).
'the french' becomes 'les' (plural form of 'the' in French).
'tab'+'les'='TABLES'
(Other definitions for tables that I've seen before include "Turn these to gain the advantage" , "Sets of facts and figures in columns and rows" , "Flat-topped pieces of furniture (which can be turned?)" , "Sit at the strange stable" , "Turn these to gain the upper hand" .)