The most common and most likely answer to this crossword clue is the 7 letter word DASHING
I've seen this crossword clue in Independent
D
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Buddy explains!

The straight part
We know that "spirited" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case spirited = dashing.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 DASHING mean?
DASHING verb- To run quickly or for a short distance.
- To leave or depart.
- To destroy by striking (against).
- To throw violently.
- (sometimes figurative) To sprinkle; to splatter.
- To mix, reduce, or adulterate, by throwing in something of an inferior quality.
- (of hopes or dreams) To ruin; to destroy.
- To dishearten; to sadden.
- To complete hastily, usually with down or off.
- To draw quickly; jot.
- The action of the verb to dash.
- Spirited, audacious and full of high spirits.
- Chic, fashionable.