A frame of mind? (5)
I believe the answer is:
skull
This might be a double definition.
'a frame' is the first definition.
The answer and definition can be both body parts as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'mind?' is the second definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for skull that I've seen before include "Bony part of head" , "Bony skeleton of the head" , "Brainbox" , "Brain casing" , "Bony case of brain" .)