The most common and most likely answer to this crossword clue is the 9 letter word ENERGETIC
I've seen this crossword clue in The Daily Telegraph
E
N
E
R
G
E
T
I
C
More clues leading to the result ENERGETIC
- Powerful quote author half-heartedly recalled
- Greece isn't working — protesters ultimately coming out animated
- Active in Europe’s first revolutionary green movement
- In Greece, perhaps, describing Thessaly’s capital as lively
- Quote about Green movement at first showing great vitality
- Vigorous screwing, e.g. in Crete
- Forceful queen involved in genetic development
- Vital foreign talks to begin in Greece
- Lively Frenchman backed to become in charge
- Active English politician, gutless to block call for review
Buddy explains!
The straight part
We know that "very active" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case very active = energetic.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 ENERGETIC mean?
ENERGETIC adjective- Possessing or pertaining to energy.
- Characterised by force or vigour; full of energy; lively, vigorous.
- Having powerful effects; efficacious, potent.