### Clue: Document to be filled in by don or graduate (3,5)
### Answer: PRO FORMA 
 ### Explanation: Definition: Document to be filled in
  PROF(short for "professor",don at a learning institution) + OR + MA(abbrev. for $$M$$aster of $$A$$rts,a graduate).
Answer: From the Latin, meaning "for the sake of form" or "as a matter of form".  Therefore strictly an adjective (or adverb) in eg. a pro-forma invoice, which is an advance document, not the actual invoice.  However, it appears that in the UK, the word has evolved into a noun, meaning a document to be completed,filled in; a meaning given in OED, but not in American dictionaries – I know, it's a crossword in an English newspaper.  🙂