Slides for small children (5)
I believe the answer is:
skids
'slides' is the definition.
(skid is a kind of slide)
'small children' is the wordplay.
'small' becomes 's' (abbreviation - e.g. clothes size).
'children' becomes 'kids' ('kid' can be a synonym of 'child').
's'+'kids'='SKIDS'
'for' is the link.
(Other definitions for skids that I've seen before include "Slides without control" , "Slides sideways" , "From coasts" .)