Teacher has work schedule written up for patron (7)
I believe the answer is:
donator
'for patron' is the definition.
(thesaurus)
'teacher has work schedule written up' is the wordplay.
'teacher' becomes 'don' (don can mean an academic - especially at Oxbridge).
'has' says to put letters next to each other.
'work schedule' becomes 'rota' (I've seen this before).
'written up' says the letters should be written backwards (in a down clues, letters go up).
'rota' reversed gives 'ator'.
'don'+'ator'='DONATOR'
(Other definitions for donator that I've seen before include "benefactor!" , "Someone giving" , "Giver" , "Presenter" , "One will give" .)