The most common and most likely answer to this crossword clue is the 8 letter word FRENZIED
I've seen this crossword clue in The Daily Telegraph
F
R
E
N
Z
I
E
D
More clues leading to the result FRENZIED
- Dancing in red fez, extremely agitated
- Cooked incorporating Zen, perhaps, or its opposite!
- Mad extremist interrupting Liberal Democrat, missing answer
- Frantic having refined novel, penning the last character
- Rampaging All Black that is tackled by Perry?
- Frantic, but awfully refined, clasping the last letter
- French denizenis excited, wildly excited
- Wild dancing in red fez
- Wild deer, if moved outside New Zealand, must be panic-stricken
Buddy explains!

The straight part
We know that "panic-stricken" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case panic-stricken = frenzied.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 FRENZIED mean?
FRENZIED adjective- In a state of hurry, panic or wild activity.