Cloth girl left on floor (7)
I believe the answer is:
flannel
'cloth' is the definition.
(I know that flannel is a type of cloth)
'girl left on floor' is the wordplay.
'girl' becomes 'lenna' ().
'left' says the letters should be written backwards.
'on' says to put letters next to each other.
'floor' becomes 'fl' (abbreviation as in buildings).
'lenna' in reverse letter order is 'annel'.
'annel' after 'fl' is 'FLANNEL'.
(Other definitions for flannel that I've seen before include "Facecloth - soft soap" , "A mug might be touched by this" , "short trousers" , "Talk evasively; cloth" , "hedge" .)