"___ Pinafore" (3)

'pinafore' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for apron that I've seen before include "Paved area where aircraft are parked" , "Protective garment worn at front" , "area in front of aircraft hangar" , "Airport area for manoeuvring and loading planes" , "Garment for protection" .)
'pinafore' is the definition.
(I've seen this in another clue)
This is the entire clue.