Sees Latin translation as very important (9)
I believe the answer is:
essential
'very important' is the definition.
(I've seen this before)
'sees latin translation' is the wordplay.
'translation' is an anagram indicator.
'sees'+'latin'='seeslatin'
'seeslatin' is an anagram of 'ESSENTIAL'.
'as' acts as a link.
(Other definitions for essential that I've seen before include "must-have item" , "something necessary" , "Indispensible" , "So is certain oil-production" , "organic" .)