Front cover? (5)
I believe the answer is:
apron
This clue is a double definition.
'front' is the first definition.
(I have seen 'Front of stage' mean 'apron' so perhaps 'front' could also mean 'apron')
'cover?' is the second definition.
(I have seen 'Protective cover ' mean 'apron' so perhaps 'cover' could also mean 'apron')
(Other definitions for apron that I've seen before include "Protective garment - type of stage" , "Front stage; protective garment" , "Protective garment (with strings attached!)" , "Paved area where aircraft are parked" , "Protective garment worn at front" .)