A dry, mostly cold, often dusty space (5)
I believe the answer is:
attic
'often dusty space' is the definition.
The definition and answer can be both body parts as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'a dry mostly cold' is the wordplay.
'a dry' becomes 'att' (I've seen this in other clues).
'mostly' means to remove the last letter.
'cold' becomes 'icy' (similar in meaning).
'icy' with its final letter taken away is 'ic'.
'att'+'ic'='ATTIC'
Can you help me to learn more?
(Other definitions for attic that I've seen before include "Upper chamber" , "cockloft" , "Floor" , "Dusty room" , "Lofty room" .)