Put pen to paper (5)
'put pen to paper' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for write that I've seen before include "Produce text" , "Create (manuscript)" , "Put down in black and white" , "Put pen to paper" , "Draft" .)
(Other definitions for drew that I've seen before include "Made lines on a surface" , "Sketched; attracted" , "Ronnie of the Dubliners" , "Dragged, finished level" , "Made picture; pulled" .)