The most common and most likely answer to this crossword clue is the 11 letter word EMPOWERMENT
I've seen this crossword clue in The Guardian
E
M
P
O
W
E
R
M
E
N
T
More clues leading to the result EMPOWERMENT
Buddy explains!
The straight part
We know that "authorisation" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case authorisation = empowerment.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does EMPOWERMENT mean?
EMPOWERMENT noun- The achievement of political, social or economic power by an individual or group.
- The process of supporting another person or persons to discover and claim personal power.
- The state of being empowered (either generally, or specifically).
- Government programs encouraging advancement of blacks.