Day bed (6,6)
I believe the answer is:
chaise longue
'day bed' is the definition.
(I know that day bed can be written as chaise longue)
This is the entire clue.
(Other definitions for chaise longue that I've seen before include "Partly backed couch with one arm" , "Sofa for reclining on" , "Reclining seat with back and armrest" , "Type of sofa" .)