The most common and most likely answer to this crossword clue is the 5 letter word BRISK
B
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More clues leading to the result BRISK
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The straight part
We know that "lively" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case lively = brisk.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 BRISK mean?
BRISK verb- (often with "up") To make or become lively; to enliven; to animate.
- Full of liveliness and activity; characterized by quickness of motion or action
- Full of spirit of life; effervescing
- Sparkling; fizzy
- Stimulating or invigorating.
- Abrupt, curt in one's manner or in relation to others.