Dissertation (6)
'dissertation' is the definition.
(I know that dissertation can be written as thesis)
This is the entire clue.
(Other definitions for thesis that I've seen before include "Article by son is in paper" , "writing following research" , "Learned dissertation" , "Essay putting forward a particular view" , "theory" .)
'dissertation' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for treatise that I've seen before include "Formal exposition" , "Written composition" , "Disquisition" , "Long, detailed essay" , "Iterates in essay" .)