The most common and most likely answer to this crossword clue is the 10 letter word SUBMISSIVE
I've seen this crossword clue in Financial Times
S
U
B
M
I
S
S
I
V
E
More clues leading to the result SUBMISSIVE
Buddy explains!

The straight part
We know that "resigned" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case resigned = submissive.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 SUBMISSIVE mean?
SUBMISSIVE noun- (BDSM) One who submits to a dominant partner in sexual practices.
- One who submits.
- Meekly obedient or passive.