Mantle (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
cloak
'mantle' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for cloak that I've seen before include "Garment - conceal" , "Cover, hide" , "Mantle" , "Loose overgarment" , "Veil with cape" .)