The most common and most likely answer to this crossword clue is the 11 letter word UNSATISFIED
I've seen this crossword clue in The Daily Telegraph
U
N
S
A
T
I
S
F
I
E
D
Buddy explains!
The straight part
We know that "Discontented/not fully paid" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case discontented/not fully paid = unsatisfied.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 UNSATISFIED mean?
UNSATISFIED adjective- Not satisfied, especially with the quantity of something