The most common and most likely answer to this crossword clue is the 7 letter word BUOYANT
I've seen this crossword clue in The Times
B
U
O
Y
A
N
T
More clues leading to the result BUOYANT
Buddy explains!
The straight part
We know that "Resilient" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case resilient = buoyant.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 BUOYANT mean?
BUOYANT adjective- Having buoyancy; able to float.
- Lighthearted and lively.