Hindu scripture (9)
'hindu scripture' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for veda that I've seen before include "Sacred writing of Hinduism" , "Hindu scriptures" , "holy book" , "Sacred text of Hinduism" , "Sacred literature of Hindus - asks Dave" .)
(Another definition for upanishad that I've seen is " text in Sanskrit".)