Clear the cellar (5)
I believe the answer is:
vault
I believe this is a double definition.
'clear' is the first definition.
(I've seen this before)
'cellar' is the second definition.
(I've seen this before)
'the' acts as a link.
(Other definitions for vault that I've seen before include "bound?" , "Underground chamber - jump!" , "Crypt; leap" , "Leap - wine or money chamber?" , "Strongroom or burial chamber" .)