A bishop's responsibility is to make observations (3)
I believe the answer is:
see
This could be a double definition.
'a bishop's responsibility' is the first definition.
(jurisdiction of a bishop, eg the Holy See)
'make observations' is the second definition.
'see' can be an answer for 'make' (thesaurus). I am not certain of the 'observations' bit.
'is to' acts as a link.
Can you help me to learn more?
(Other definitions for see that I've seen before include "date" , "Up-and-down motion" , "around cathedral" , "Bishop's diocese" , "Perceive, watch" .)