Tender lass struggling with big furniture item (8,5)
I believe the answer is:
dressing table
'furniture item' is the definition.
(dressing table is a type of item of furniture)
'tender lass struggling with big' is the wordplay.
'struggling with' indicates an anagram.
'tender'+'lass'='tenderlass'
'tenderlass' anagrammed with 'big' makes 'DRESSING-TABLE'.
(Other definitions for dressing table that I've seen before include "Bedroom item" , "Piece of furniture with mirror and drawers for cosmetics etc" , "Bedroom furniture, usually with mirror and drawers" , "one'll usually have a large glass on top" , "Here one may make up" .)