Make study physically satisfying when agreed to by all (10)
I believe the answer is:
consensual
'all' is the definition.
Both the answer and definition are adjectives. Perhaps they are linked in a way I don't understand?
'make study physically satisfying when agreed to' is the wordplay.
I cannot really understand how this works, but
'study' could be 'con' (con can informally mean to study) and 'con' is located in the answer.
'when' could be 'e' (I've seen this in other clues) and 'e' is present in the answer.
This explanation may well be incorrect...
'by' acts as a link.
Can you help me to learn more?
(Other definitions for consensual that I've seen before include "Involving free agreement" , "No such decision imposed" .)