Public official with office key opens really accessible toilets (10)
I believe the answer is:
bureaucrat
'public official' is the definition.
'bureaucrat' can be an answer for 'official' (a bureaucrat is a government official). I am unsure of the 'public' bit.
'office key opens really accessible toilets' is the wordplay.
I cannot quite understand how this works, but
'office' could be 'bureau' (synonyms) and 'bureau' is present in the answer.
'key' could be 'c' (musical key) and 'c' is located in the answer.
The remaining letters 'rat' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'with' is the link.
Can you help me to learn more?
(Other definitions for bureaucrat that I've seen before include "Government official" , "Administrator" , "Mandarin" .)