The most common and most likely answer to this crossword clue is the 3 plus 4 letter word CON BRIO
I've seen this crossword clue in The Guardian
C
O
N
B
R
I
O
More clues leading to the result CON BRIO
- Party writer advancing right forcefully
- Call for spirit and stiff port, guzzling head of beer
- Crook runs through life energetically
- At the end, Number 10 mislead Britain with spirit
- I break bucking bronco, hitting it forcefully
- Instruction written above bar with defective biro
- Energetically heads to celebration of City follower of note
- Having spirit found in bars
- Caught old Robin dancing vivaciously
- Bronco I busted with a lively spirit
Buddy explains!

The straight part
We know that "energetically" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case energetically = con brio.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.