The most common and most likely answer to this crossword clue is the 4 letter word BUDS
B
U
D
S
More clues leading to the result BUDS
Buddy explains!

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 BUDS mean?
BUDS noun- A newly sprouted leaf or blossom that has not yet unfolded.
- Something that has begun to develop.
- A small rounded body in the process of splitting from an organism, which may grow into a genetically identical new organism.
- (usually uncountable) Potent cannabis taken from the flowering part of the plant (the “bud”), or marijuana generally.
- A weaned calf in its first year, so called because the horns are then beginning to bud.
- (term of endearment) A pretty young girl.
- To form buds.
- To reproduce by splitting off buds.
- To begin to grow, or to issue from a stock in the manner of a bud, as a horn.
- To be like a bud in respect to youth and freshness, or growth and promise.
- To put forth as a bud.
- To graft by inserting a bud under the bark of another tree.
- Buddy, friend.
- Used to address a male