Narrow aperture (4)
'narrow aperture' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for slot that I've seen before include "Long narrow aperture" , "This gaming machine operates by insertion of coin" , "Scheduled time -- aperture for coins" , "Space for inserting coin" , "Long narrow slit" .)
'narrow aperture' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for slit that I've seen before include "Narrow rent" , "Long straight cut" , "Incision" , "Long narrow cut" , "Narrow aperture" .)