Leave a coat (5)
I believe the answer is:
parka
'coat' is the definition.
(I know that parka is a type of coat)
'leave a' is the wordplay.
'leave' becomes 'park' (parking a car is leaving it somewhere).
'park'+'a'='PARKA'
(Other definitions for parka that I've seen before include "Windproof jacket" , "cover plus hood attachment" , "Hooded garment" , "Hooded weatherproof coat" , "Warm, hooded coat" .)