Slip 'N Slide attachment (4)
I believe the answer is:
hose
'slip 'n slide attachment' 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 pipe for liquid" , "Flexible tube for liquid" , "Socks and stockings" , "Garden implement" , "footwear" .)