Dawn of Japanese standardisation (6,3)
I believe the answer is:
rising sun
This clue is a double definition.
'dawn' is the first definition.
(I've seen this before)
'japanese standardisation' is the second definition.
(I've seen this before)
'of' acts as a link.
(Other definitions for rising sun that I've seen before include "Dawn" , "Part of standard for Japanese" , "Japanese standardisation" .)