Can and must rip up document (10)
I believe the answer is:
manuscript
'document' is the definition.
(I know that manuscript is a type of document)
'can and must rip up' is the wordplay.
'and' means one lot of letters go next to another.
'up' is an anagram indicator (letters get chucked up).
'must'+'rip'='mustrip'
'can' put after 'mustrip' is 'mustripcan'.
'mustripcan' with letters rearranged gives 'MANUSCRIPT'.
(Other definitions for manuscript that I've seen before include "(Originally handwritten) book before publication" , "Handwritten text" , "Original or copy of document" , "Handwritten document" , "Document written by hand" .)