United Nations gets US president to grab Danish leader (not invited) (8)

I believe the answer is:

unbidden

I'm a little stuck... Click here to teach me more about this clue!

'not invited' is the definition.
The answer and definition are different parts of speech. However, past participle verbs and adjectives can sometimes mean the same thing.

'united nations gets us president to grab danish leader' is the wordplay.
'united nations' becomes 'UN' (abbreviation).
'gets' says to put letters next to each other.
'us president' becomes 'biden' (Joe Biden).
'to grab' indicates putting letters inside.
'leader' indicates taking the first letters.
The first letter of 'danish' is 'd'.
'biden' enclosing 'd' is 'bidden'.
'un'+'bidden'='UNBIDDEN'

Can you help me to learn more?

(Other definitions for unbidden that I've seen before include "Spontaneous - not invited" , "Without being asked" , "Without having been invited" , "Uninvited, spontaneous" , "Not asked or ordered to" .)

I've seen this clue in the Sydney Morning Herald.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.