The most common and most likely answer to this crossword clue is the 4 letter word BLUB
B
L
U
B
More clues leading to the result BLUB
- Cry from Daffy, perhaps, being knocked about
- Flipping onion making you cry!
- Cry when tulip, say, knocked over
- Light up to demonstrate greeting?
- Cry, then one needed to lighten up
- Show emotion, seeing spring flower coming up
- Britpop darlings ousting Queen for British No.1 makes you weep
- Over onion, say, cry
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 BLUB mean?
BLUB noun- The act of blubbing.
- To cry, whine or blubber (usually carries a connotation of disapproval).
- To swell; to puff out, as with weeping.
- (attributively) Swollen, puffed, protruding.