Crossword Genius

Understood to have made the grade (8)

Ross

I believe the answer is:

gathered

Here is my best explanation:

'understood' is the definition.
('gather' can be a synonym of 'understand')

'made the grade' is the wordplay.
'made' indicates an anagram.
'the'+'grade'='thegrade'
'thegrade' with letters rearranged gives 'GATHERED'.

'to have' is the link.

This clue was last seen in Evening Standard