Cook's garment (5)
I believe the answer is:
apron
'cook's garment' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for apron that I've seen before include "Front stage; protective garment" , "something befitting kitchen-sink drama?" , "Kitchen garment or airfield area" , "Pinny -part of the fairway leading onto the green" , "Protective wear - type of stage" .)