Bush negates work of royal family (12)

'bush' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'negates work of royal family' is the wordplay.
I cannot really see how this works, but
an anagram of 'negates' is 'agenets' which is present in the answer.
'family' could be 'plant' (plant family is a kind of family) and 'plant' is found within the answer.
No letters remain.
This explanation may well be incorrect...