The most common and most likely answer to this crossword clue is the 9 letter word ENLIVENED
I've seen this crossword clue in The Daily Telegraph
E
N
L
I
V
E
N
E
D
More clues leading to the result ENLIVENED
Buddy explains!

The straight part
We know that "excited" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case excited = enlivened.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 ENLIVENED mean?
ENLIVENED verb- To give life or spirit to; to revive or animate.
- To make more lively, cheerful or interesting.