Nozzle site (4)
I believe the answer is:
hose
'nozzle site' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for hose that I've seen before include "Flexible tube for liquid" , "Garden implement" , "Stockings; drench" , "Stockings, etc." , "Breeches (worn with a doublet)" .)