Slide around top (3)
I believe the answer is:
lid
'top' is the definition.
(lid is a kind of top)
'slide around' is the wordplay.
'around' indicates a hidden word.
'LID' is hidden within 'slide'.
(Other definitions for lid that I've seen before include "Cover from gliders" , "Bottle or jar top" , "Cover for box or eye" , "Pie crust; cover" , "Cover for box or pot" .)