Caller wandering downstairs? (6)
I believe the answer is:
cellar
'caller wandering downstairs?' is the definition.
I can't judge whether this definition defines the answer.
'caller wandering' is the wordplay.
'wandering' indicates anagramming the letters.
'caller' with letters rearranged gives 'CELLAR'.
Can you help me to learn more?
(Other definitions for cellar that I've seen before include "Bottom room where wine is often stored" , "wine stocks" , "Room where wine is usually stored" , "Lower room" , "Wine stock; sounds like vendor" .)