The old woman, one of the celebs who denies the spiritual? (11)
I believe the answer is:
materialist
'the old woman one of the celebs who denies the spiritual?' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'the old woman one of the celebs' is the wordplay.
'the old woman' becomes 'ma' (I've seen this in other clues).
'one of' becomes 'teri' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'the celebs' becomes 'alist' (I have seen 'Top celebs' mean 'a list' so perhaps 'celebs' could also mean 'a list').
'ma'+'teri'+'alist'='MATERIALIST'
Can you help me to learn more?
(Another definition for materialist that I've seen is " not caring for the spiritual life?".)