Recall crumbling basement (6)
I believe the answer is:
cellar
'basement' is the definition.
(basement room)
'recall crumbling' is the wordplay.
'crumbling' indicates anagramming the letters.
'recall' anagrammed gives 'CELLAR'.
(Other definitions for cellar that I've seen before include "Storage area for the wine" , "Bottom room where wine may be stored" , "Lower room" , "Storage space below ground" , "Space for storing wine, say" .)