Like a dignitary taking liberties? (8)

I believe the answer is:

imposing

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

'taking liberties?' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

(Other definitions for imposing that I've seen before include "Taking liberties" , "Enormous - levying - striking" , "Impressive in appearance" , "Impressive - or putting tax on" , "Grand, impressive" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app