Cap for two women (7)
I believe the answer is:
patella
'cap' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'two women' is the wordplay.
'two women' means two substitutions for 'woman'.
'woman' becomes 'pat' ().
'woman' becomes 'ella' (woman's name).
'pat'+'ella'='PATELLA'
'for' is the link.
Can you help me to learn more?
(Other definitions for patella that I've seen before include "A pallet (anag.)" , "showing a bit of leg" , "Kneecap (anatomy)" , "Knee bone" , "Joint cover" .)